That USB flash drive. Choose a flash drive

Once the shelves of any PC owner were littered with diskettes, then CDs, but now for storing information and comfortable use, Flash drives are used. This is very comfortable toolwhich has a large amount of memory, high transmission speed, a convenient usb interface for connecting, so you should have an idea how to choose a flash drive. The choice is very wide, so before the acquisition you need to be able to deal with the characteristics of the device.

What is a flash drive

People are already accustomed to the presence of a little, convenient device that can store a large amount of music, video or video, but few understands that the device is. The flash drive is a removable media storage medium with a specific file system type without moving elements in the structure, which provides increased reliability. To write and read the documents, the TLC memory is used, but the selection of the flash drive is built not only for this parameter, the amount of media, recording speed and reading is also considered.

Views

One of the parameters of this device is an appearance. Types of flash drives are not so diverse, there are options with a connection interface 2.0 and 3.0, but the appearance can be very different. Internal organization The carrier consists of the board and output for USB connections, but the body variants are very different. Difficulty in choosing external view No, however, some design features still should be considered when buying. What are the flash drives and what to focus on:

1. Open connector. Often this option is used on models with very small sizes. There is no protective cap on the contact plate, which helps to make the drive compact, but does not protect the connector from scratches, garbage.
2. Removable cap. This is a popular, simple version of the plates. Plastic or rubber hooks are made to protect against moisture, USB dust. The main problem is that it is very easy to lose it, so you look for a model where the nozzle is attached to the housing using the rope.
3. Bracket. The design of the housing consists of a bracket and body of the device, they can rotate to each other side. It helps to close the side of the storage connector to protect the ort scratch plate, but it will not help it from moisture or dust.
4. Slider. With this embodiment, using a special key, you can hide the connector in the case. It helps protect USB from dome, scratches, but there is a risk that the locking mechanism breaks and get the plate will be difficult. In addition, protection against moisture, dust does not guarantee.

They produce a housing for flash drives from rubber, plastic and metal. The best option It is believed when these protection systems are combined. For instance, metal housing From above has a rubberized base, which guarantees protection against external influences, moisture, dust. Even when dropping from a high height, all records on the carrier will remain safe and preservation. There are such models, as a rule, more expensive.

Speed

Correctly select the appropriate model, if you know about the basic device parameters. The speed of writing and reading flash drives is important criteria for purchase, because they affect the speed of interaction of the drive with a computer. If you consider that you can overwrite information a large number of times, it will be better if it happens at maximum speed. This parameter is measured in megabits per second (MB / s).

Memory capacity Manufacturers always write large numbers on the package, but not all firms indicate the speed, which is a very important parameter to assess the rationality of buying this removable media. On the package, this parameter is indicated in the rating format, for example, 200x, where the variable is 200 kB / s. It turns out that the speed with this indicator will be 30 MB / s. The higher the multiplier X, the faster you will record the data and their transfer to the computer. High-speed flash drives are always more expensive.

Maximum volume

This is the main characteristics of the device on which buyers pay attention. This is the right course of the manufacturer, but a person must necessarily pay attention to other parameters. The amount of memory of the flash drive, as a rule, is indicated in gigabytes (in use "Gig"). Modern models are designed for 32/64/128 GB, but if necessary, it is possible to take the capacity less than 4/8/16 GB. Not every person is going to keep huge amounts of data, so the maximum indicators are not needed.

The maximum amount of flash drives available to purchase the user is 128 GB, for the price such a drive is at the same level with an SSD disk for 1 terabyte (TB). The scheme of work on devices is different, but USB drives have more mobility, you can carry them in your pocket and connect to any computer, laptop without problems. If you are not constrained in the means and you need a large amount of memory, then make it possible to choose a better USB flash drive. Separate the types of storage tanks as follows:

• cheap, but low-pass - 4-16 GB;
• affordable price and good quality -16-64 GB;
• high cost, but a large capacity - 128 GB.

Rating flash drives

Due to a lot of different manufacturers, companies and speed options, the volume of people have a question, which flash drive is better to buy for a computer. It should be understood that there are drives for phones, cameras (SDs) which are connected to a PC only through a special card reader (in a laptop it is built-in). Each year there are reviews, which discusses the best manufacturers of flash drives, which models it is worth choosing in terms of price / quality ratio.

There are certain dealers of sales that are popular among users. The classification is carried out on the basis of references left by buyers about the work of the flash drives. You can choose one of the following companies:

1. Transcend. The well-known company, which is engaged in the production of products for computers in 1988. For the first time, this manufacturer introduced a lifelong warranty on his drives, because service life, the number of record cycles from these carriers is really big. Want a proven USB flash drive - you need to select transcend.
2. Silicon Power. The company is very popular, the products of which are sold in 90 countries of the world.
3. Kingstone. Choose this option should be selected if you want a proven brand that is in the market since 1987. The manufacturer competes confidently with all other firms.
4. Teamgroup. Every year the range increases and the buyer has from it to choose it.
5. SanDisk. Appeared in 1988 on the market and every year they produce at least 4 million copies of memory cards. The design is very downtime is a democratic price.
6. Apacer. A company has established itself as a manufacturer of high-quality, reliable products, which is terribly chosen and buy.
7. Pretec. This firm is widely used in industrial and military purposes. This is a good argument in favor of choosing this flash drive.
8. ADATA. Relatively new company that produces reliable products.
9. Prestigio. A company that produces many electronic products. Choose such flash drives should if you like the skin (exclusive design), which is decorated the body of the product.

The biggest

The storage devices differ in cost depending on how volume is the carrier. More capacious options will cost more, on this momentthe largest volume of the flash drive is 512 GB. You need to choose this option if you want to copy movies from the Internet, go on a journey. For text files, Music it will be too large drive. At the same time, the device will still look very compact. Here are examples of such carriers along with the cost:

• INTENSO ULTRA LINE 128GB - from 1800 rubles;
• SanDisk Ultra Fit 128GB - from 2100 rubles;
• SanDisk Cruzer Blade 128GB - from 1300 rubles;
• CNMEMORY SPACELOOP XL (256 GB) - from 2000 rubles;
• Patriot SuperSonic Mega (512 GB) - 2500 rubles.

The fastest

Another important storage parameter is the data transfer rate. All models undergo mandatory testing at the factory and the packaging should be indicated in MB / s. High-speed flash drives take out this indicator on the packaging, because they are their advantage. If you can't find this parameter anywhere, it means that it is low and the company does not want to open it. Below will be presented a small top, which flash drive is the most reliable and fast:

Name	Record / read speed ratio in%
SANDISK EXTREME USB 3.0
ADATA DashDrive UV128.
TRANSCEND JETFLASH 780.
Transcend Jetflash 760.
Kingston Datatraveler G4.
SILICON POWER MARVEL M01
Transcend Jetflash 790.

The most reliable

It is very important to buy drives in official stores, because many fakes come from China. Rating of reliability flash drives is constantly changing, because the device is produced by large quantities and sometimes there are tanks at the factory. Below is the rating of reliable and proven models based on positive feedback Buyers:

1. TRANSCEND JETFLASH 700. Drive with a very simple plastic design. You can select an option with an interface 2.0 and 3.0 (USB). Choose this model, if you need good performance without overpayment.
2. Transcend JetFlash 780. This model is distinguished by another memory cell device, which provides a higher data processing rate.
3. Kingston Datatraveler 100 GZ. Simple and practical model with sliding plastic case.
4. TRANSCEND JetFlash Z50. A very small and comfortable flash drive for work or study.
5. Kingston Datatraveler G4. Convenient fastening system, you can hang on the keys not to lose.

Which flash drive is better

When you decide to choose yourself removable drive, consider what kind of goals it needs, the budget and practicality of the model. The best flash drive, one that meets your needs. If you need only from the work computer to bring home several text or graphic documents, then 8 GB will even make sense to overpay for the volume. What flash drive to buy depends exclusively on your needs, and the most popular and reliable firms were described above.

Which flash drive to choose

If you buy in the usual store, do not hesitate to ask the consultant about the characteristics of the drive. Select the appropriate option will help flash drive parameters that indicate the packaging. As a rule, people pay attention only to the maximum drive of the drive, but the data transfer rate is much more important parameter. You can take a 128 GB drive, the level of it will be slow recording speed and you will throw one film for 30 minutes. Below will be considered in detail how to choose a flash drive that will meet your needs.

How to choose a good flash drive

You have the opportunity to overwrite the contents of the drive many times. It should be borne in mind that the shelf life of the flash drive is not specified, but there is a certain number of cleaning cycles. As a rule, they are so much that a person does not have time to use them. More often drives are losing and then you need to know how to choose a flash drive. Do it in the following parameters.

Memory size

The first thing that the buyer pays attention to when I decided to choose a drive. This indicator may be different from 512 megabytes that 512 GB. With the development of technologies, the maximum amount of memory is growing, so a flash drive with a large volume may appear. You need to choose the one that matches the files you are going to copy. If we are talking about text documents, then more than 4 GB you will never come in handy. If this is a flash drive for a teenager. which can copy movies, games, then the volume will need more (from32 to 128 GB).

Reading and writing speed

Two these values \u200b\u200bindicate how speed you can put the data on the USB flash drive and from it to the computer. The higher this indicator, the better, the expensive modern models have a value of 50 MB / s, cheaper - from 3 MB / from data record. The read speed is in the range from 35 to 90 MB / s (indicates how quickly you can copy files from the flash drive to the computer).

Not the most important parameter, but it is worth considering it. If you often lose small things IL to use the drive will be a child, then you should choose a model with mounting on the keys. No need to take options with a cap, because it is also very easy to lose. Prefer simple models Without iron caps, they will serve you for a long time and reliably.

Price

The spread in the cost of this product is great, the price will depend on the characteristics of the drive. Particularly affects the pricing of the amount of memory than more GB, the higher the cost. All popular types of flash drives for a computer can be viewed and ordering on the Internet, because their cost will be more profitable there. Here are examples of some models that you could choose:

Name	Distinctive feature	Price, rubles
Transcend JetFlash 600.	High speed
SanDisk Cruzer Fit.	Very compact
Kingston Datatraveler SE9.	Stylish design
Kingston Datatraveler R3.0 G2	Price-quality ratio
Transcend Jetflash 790.
Corsair Flash Voyager GS (Cmfvygs3)	Reading speed

Video

Memory of any phone, computer or camera is not limitless, so in order to more effectively use your device, it makes sense to acquire such a portable medium of information like a flash card. In addition, its convenience is that the files can be viewed anywhere, even if your gadget is near. Over time, the memory rods were modified and a number of changes have undergone. At the moment, for a specific type of device, there is a model of a flash drive.

What is a flash card

A few years ago, flash drives have not yet had such distribution in everyday life outside offices and serious institutions. After years, the popularity of flash drives increased at times, and the average user no longer represents its activities without them. The flash drive is a miniature box with microcircuits hidden in it and a certain type of connectors.

The goal of the flash drive is to accumulate information within itself and providing access to it at any time via USB or using a special adapter. Store on the memory card you can document any formats, photos, music and video. What amount will fit on the flash carrier depends on its volume: it can be so small, which will allow you to record only a few photos in good quality.

Principle of operation

With all the apparent simplicity, the flash drive device pays a lot of secrets, unknown to the usual user. Inside the compact box is a complex chip, with which the recording, storage and subsequent reading is carried out. Flash memory is the basis of these devices and is represented by such a component as a transistor with a floating shutter. Methods of connecting to an array of cells in memory cards varies, due to which the chips of the types of NOR and NAND are distinguished. Notable for the user differences are manifested in the recording speed, erasing and reading.

Views

Not only on the intricate design of the memory card can classify these portable devices. Flash drives have other, more important, parameters, with which you can combine them in groups:

• Outer shell. There are flash devices with a USB connector, designed to attach to a computer or other devices that have a suitable input. In addition to them, there are mini and even micro memory cards, actively used, for example, for photographic equipment or mobile phones.
• Capacity. The container plays a role, so it is better to immediately choose a flash drive with the desired number of gigabytes, the good range will allow it to do.
• File system. Fat family is often found in flash media with a small amount. If we are talking about greater tank, then in such maps you will meet nTFS systemhaving more advanced features.

Flash drive

The non-volatility of memory cards is bribed users who want to save their files and be able to access them at any time. Due to the variety of digital media and information technologies In a retail or online store, an average user choosing a flash drive for personal use may simply be lost. Initially, it is necessary to determine the purpose of buying and using the flash drive.

SD.

There are many flash devices with similar names capable of making regular user To be confused. Secure Digital Memory Card is almost the first standard of memory cards introduced in 1999. At the moment, such flash fixtures are still used in certain types of equipment and you can buy a SD card in most shops. Distinctive feature Such a card is a small volume: minimum - 8MB and maximum - 4GB.

• Title: Transcend TS128MSD100i.
• Price: 650 rubles.
• Characteristics: The card has a volume of 128MB, has a good copy speed and reading, there is a mechanical recording block from the side.
• Pros: Compatible with most devices, inexpensive.
• Cons: Little Capacity.

There are more expensive flash drives, where the increase in cost is caused by a greater capacity or other parameters:

• Title: Apacer Secure Digital Card.
• Price: 1900 rubles.
• Characteristics: The volume of the flash carrier is 2GB, refers to class 10.
• Pros: Good speed, medium capacity.
• Cons: not revealed.

MicroSD.

Miniature devices often need to expand memory. The MicroSD flash drive is the smallest of the current cards. For it, you can find adapters for sale, with which the flash carrier can be opened, for example, through a laptop. Most maps are similar, but the choice is:

• Title: Kingston SDC / 2GB.
• Price: 200 rubles.
• Characteristics: Includes a microSD card with a capacity of 2GB and an adapter for it.
• Pros: cheap, the presence of an adapter.
• Cons: Small volume, slow data transfer rate.

Alternatively, in about the same price category, you can consider the following option:

• Name: Qumo MicroSD.
• Price: 250 rubles.
• Characteristics: Volume - 4GB, The manufacturer provides a USB flash drive with an adapter.
• Pros: Low price, good speed.
• Cons: a high percentage of marriage in the parties.

SDHC

Technical progress on site is not worth it and the SD cards gradually began to change. Most of the parameters of these Flash drives SDHC inherited. However, a great difference is a significant increase in carrier capacity. Maximum on such a flash drive can be written 32GB. Many well-known firms producing SD cards included in their rules and SDHC:

• Name: SanDisk Extreme Pro SDHC UHS Class 1.
• Price: 1000 rubles.
• Characteristics: Volume - 8GB, read speed and recording - 90-95 MB / s, Durable case.
• Pros: High speed, impact resistance card, good ratio Prices and qualities.
• Cons: not revealed.

Often, about the same price you can buy a larger flax carrier. The catch lies in a lower class, which will necessarily affect the data rate:

• Title: Kingston SD4.
• Price: 1200 rubles.
• Characteristics: Volume - 32GB, Class - 4.
• Pros: reliable manufacturer, large volume, reasonable price.
• Cons: average speed.

SDXC.

The new standard of compact flash carriers was designed in 2009. Unlike their fellow, SDXC cards use file eXFAT system. The volume of flash drives increases to unprecedented sizes at that time, and the small card receives the ability to accommodate information up to 2TB. Most modern devices are already able to work with a map of this type.

• Name: SILICON POWER SUPERIOR CLASS 10 UHS-I U3.
• Price: 2900 rubles.
• Characteristics: It is possible to write up to 64GB of information, read speed - 90MB / s, recording speed - 2 times lower.
• Pros: Greater Capacity.
• Cons: not revealed.

For professional photographic equipment, where quality directly affects the weight of the file, it is better to immediately choose a larger map:

• Title: Kingston SDA10.
• Price: 14 000 rubles.
• Characteristics: Volume - 512GB, the speed recording is twice below the read speed, refers to class 10.
• Pros: Excellent work quality, proven manufacturer.
• Cons: High price.

How to choose a flash card

In Moscow and St. Petersburg, the choice of flash drives is very wide. If less large cities cannot boast a similar assortment, then their inhabitants have the opportunity to order a memory card over the Internet with mail delivery. It does not matter whether it will be a flash drive for a phone or computer, the main thing is to focus on the desired parameters. Pay attention to the following criteria:

• Volume. It is important that the number of information you plan to write to the card to be placed.
• Format. Among the available types of flash media, you must select the one that is suitable for your device.
• Data transfer rate. To the device to which the flash drive be connected does not brake, give preference to memory cards with optimal speed.
• Manufacturer. In the segment of flash drives there are several key leading brands - choose better of them.

For phone

When the place on the smartphone begins rapidly end, the memory is required to expand. Not any memory card for the phone may become suitable. It should be understood that the device is miniature, then the flash carrier will be similar. The little few are microSD, so they will be suitable for phones. There are two options: MicroSDHC and MicroSDXC, which, similarly to their full-information collections, differ only in terms of the volume and supported file system.

If we talk about laptops, then most modern models Equipped with built-in card reading adapters. For those computers in which they are not, you can purchase a separate card reader. By default, all flash drives of the SD family are read, and for micro maps you will need an adapter. It is very convenient when transferring files from one device to another. For example, in order to make a place on the flash media from the camera, the pictures can be quickly copied to the computer.

Video

There is no such person who does not know what a flash drive is. It is difficult to imagine how without it did before. Disks are forgotten, most will not remember the diskettes. With a flash drive more convenient and easier.

The first flash drives appeared in 2000 and had a memory of 8 MB. Today, the models of 8, 16, 32, 64 and more GB are popular. The full and correct name of the information drive is a USB Flash Drive, or a USB drive.

Often the question arises, how to choose the right USB flash drive? Only at first glance it seems that choose easily and simply, but besides the appearance, there are defining factors when buying. Before they consider them, look into the past.

Technique and the Internet are not worth it. In 1984, the exhibition was held electronic deviceswhere the information was presented - the prototype of the flash drive. Several years have gone to the improvement and improvement of the device, which later was used in military technology. Flash drive was expensive and inaccessible to the public. In the mid-90s. The first USB interface has developed the first USB interface, and in 2000 there appeared flash drives developed by Israeli scientists, they were called diskonkey. Gradually, the volume was greasy, changed and design.

Memory and Interface

The first thing to pay attention is the volume. Flashki with a volume of 8, 16 and 32 GB are popular.

To transfer files, 4 GB is enough, even listening to music in the car. If you pump movies, it is worth taking 16 GB or 32 GB. 64 GB drives or 128 GB acquire avid kinomans. They store at the same time text documents, photos, music and several best New Year films. Bulk type flash drive can be bought as a gift.

Interface

When buying, pay attention to the interface. If a computer motherboard Supports uSB interface 3.0, USB flash drive with the same interface. USB 2.0 is suitable for USB 3.0 connector, even USB 1.0, only the speed below. Read the characteristics of the models, consult the seller.

If the packaging is standing abbreviations Hi-Speed \u200b\u200bor Ultra Speed \u200b\u200b- high-speed flash drive. Models with recording speed below 10 MB / C Do not buy, it is spending time. 10 Mbps and above is a reasonable solution for recording and reading.

If you consider the question of reading and recording in detail, I will note interesting facts: the difference in price, as in the case of a player, imperceptible, but the difference in file transfer is significant.

For example, flash drives are purchased at the same price, but with different speeds reading and writing. One film is downloaded for 5 minutes, another - 10. If you pay more and take a proven brand, the file transfer time is reduced, and the film is injected in 3 minutes. Do not chase for cheapness, remember the expression: "I pay a miser twice!"

We pay attention to the overwriting cycles - determining the expiration date. Usually varies in the range of 10,000 - 100,000 times. Each add or deletion of information is considered to be overwriting. It turns out, 10,000 times not and much, given that the actions from the flash drive is carried out several times a day. Not all carriers work out the declared amount of overwriting, there are fakes or production marriage.

Video tips on choosing models with USB 3.0

Corpus and design

Flatbed enclosures are varied:

• plastic
• rubber
• metal.

A flash drive with a plastic body is cheaper than with a metal. It is difficult to damage and the information is stored longer. It is worth paying attention to the rubber case: such models have shockproof and waterproof, suit active users.

If a man is neat, the plastic case is suitable. Such a product is an ideal contender for the title of the best corporate gift for the new year.

Design

The caps are simple (usually removed and dress), retractable or on a chain. There are small flash drives without cap. Choosing a cap is an unimportant parameter, choose anyone you like.

The beacon is embedded in the housing, which glows or flashes during data transfer. It is good when working with a computer, it can be seen, the file is copied or not. If you are supposed to watch movies or listen to music, choose a device without a bench. He distracts from viewing or from the road, if you are in the car.

At the sizes of the case, too, note. If it is a bulk, another flash card in uSB connector Nearby will not fit. It turns out the more simpler decoration, the better! Design Choose Which Like, the main thing is that it does not interfere with working with the carrier.

Data protection form

Manufacturers on flash drives establish a serious degree of information protection:

• cryptography system
• reading fingerprints.

Protected models are sold in specialized stores and are expensive. Simple orders such devices will not need. Media with a high degree of protection use people with admission to excess secret information. Do not chase new-fashioned things, choose an ordinary flash drive, protect information in other ways.

There are flash drives in which are built in:

• flashlights
• display.

Buy these devices separately. Flash drive function - storage and transfer of information, everything else is useless. Why do you need a flashlight? He will not cover the path in the dark. Such gadgets if you buy, then only as a gift.

Choose a flash drive as a gift

In addition to determining factors, appearance matters. You can order an individual gift model or choose a ready-made option of a popular brand. Gift drives are made in a gold or silver case, in precious stones or rhinestones. Forms are also diverse: in the form of a bracelet, car chain, figures, steam punk technologies. A gift for February 23 or March 8 to purchase easily.

By performance, gift options do not differ from the usual, except prices. Treat to them will have to be carefully, otherwise the case will come into disrepair. Try to surprise friends, acquaintances or relatives with an unusual gift - flash drive with a memorable inscription, the result will turn out to be stunning!

Security Rules when working with flash drive

Avoid direct exposure to water, shocks or drops that lead to loss of contacts, damage to the memory chip. If not sure about careful work, buy a model with a protected case.

• Do not pull the flash drive from the connector, follow the instructions for safe removal. Do not turn off the computer before extracting from the drive connector. If you do not follow the instructions, damage file system. We will have to format the equipment, which will lead to loss of information.
• Do not allow the flash drive to overheat with the plastic case, do not insert it into the superheated computer.
• If a virus is detected on the flash drive, save the data on another media, format and cure it from viruses.
• Experts advise changing the drive every 2 to 3 years.

Buy the manufacturer's model that passed the time check. He has high-quality chips, which means there will be no problems with data recovery. Do not buy drives that impose or advertise, good goods in advertising does not need.

I constantly come across that confusion in the term flash driveIt often causes misunderstanding between the buyer and the seller when choosing the necessary medium of information. So, "in wide masses" there are the following main interpretations of the word flash drive: USB Flash. Drive. (Yu-Es-Bi Flash Drive), memory card microSD. (Micro-ES di is read), in general, any memory card, in general, any Flash carrier information. Here under the word flash. (Flash read) I mean flash memory technology and using an English term in order not to be confused. And sometimes I see that people in everyday life can simultaneously call the flash drive any of these devices, leaning on the fact that their interlocutor in the context or by telepathy will understand what it is about!

I will not argue about what term is more correct, and even more so I will miss the question of how correctly "flash" or "flash" (in fact, both writing is used at least equally, and nothing can be done about it). Instead of unnecessary disputes, I'll just describe all the devices, called this word, and all the words they are called, and then you can accurately buy exactly what you need!

So, let's start with USB Flash Drive.. It is behind this device that represents the universal medium containing flash memory and connected directly to a USB connector, the word flash drive fastened in Russian. However, the word Flashdrian or Flashdrive, formed from the English Flash Drive, as well as a more official flash drive (or flash drive) is popular. Since reasonable translation of this phrase is impossible to come up with a reasonable translation (well, not to call the Flash Drive "shimmering driver"!), The words Flashdrive or Flash drive should be recognized as the best term. Here are typical examples of flash drives:

Flashds are mainly used to transfer information between computers. Or for storing the information you always want to have with you. Since we are talking about typology, I note that recently there appeared flash drives with connections USB3.0.. What does it mean? This means that if there is a USB3.0 interface in the computer (the most noticeable external difference is the blue color), USB3.0 flash drive will be able to work faster. If you connect it to the traditional USB2.0 (what is on each computer), then the speed will be comparable with the speed of the usual flash drive. Here's what the USB3.0 and USB2.0 looks like: Now the second category of devices called flash drives: microSd memory cards (or microosdhc., their immediate heirs)
According to my observation, they are called flash drives either those who did not hold any other flash drives in their hands (and this is no wonder, for MicroSD / MicroSDHC applies in almost all phones, players and all sorts of gadgets), or those who other names all this Little things "does not know. They also contain flush memory, which means they have the right to be called flash drives. But for understanding between people, it is advisable to somehow differentiate the concepts, so the "memory card" will be preferable, especially if you need to explain the seller what you need. It is also important to know that memory cards are different! Therefore, it's not bad to add: "such a small memory card", but here you can get to come in: There are M2 memory cards that are very similar in size. Fortunately, they apply only in Sony's products. We mention them below. But it is also better to remember the magic words MicroSD and MicroSDHC (read by microesde and microesdehace). In colloquial speech, by the way, most often the first word (microSD) is used to designate both types of cards (and microSD and Microsdhc). There is nothing terrible in this.

What you need to know about microSD and microSDHC memory cards? First, what do they differ? MicroSDHC is more new standardSupporting the amount of memory more than 4 gigabytes. All memory cards more than 4 gigabytes can only be microSDHC, and less than 4 microSD only. But 4 GB is not lucky: they can be like such and see! However, MicroSD on 4 GB is a rarity. Now the most important question: how to choose the one that is suitable for your device? The rules are two: first, you need to determine the maximum amount of memory card with which your device can work (for this, open the instructions for it, or use the search on the Internet). Secondly, you need to buy a map of the same or less than the maximum volume. Moreover, all devices that support MicroSDHC will work with any microSD card of any volume. The nuance is here only one: if it is specified for your device that it supports a map of no more than 4 GB, it may mean that it does not support any microSDHC cards and supports any microSD cards, including 4 GB. Either this may mean that it supports any 4 GB cards, both microSD and MicroSDHC, and MicrosDHC 8 GB cards and above does not support. Here is such arithmetic. And if there are no clarifications about this, you will have to use the good old "scientific tick method."

Now another important characteristic that is often interested in buyers: what is it for class Specified for microSDHC cards? It is indicated by the number inside the English letter C.
I must immediately say that this is not a variety as, let's say, tomatoes. Memory card class - This is its ability to record information with some minimally guaranteed speed. The higher the class, the higher the speed. Moreover, it is the guaranteed smallest speed, the maximum and average speed can be significantly higher. Two cards of different classes often may have almost the same average and maximum recording speeds, but if one of them has "failures" in speed, that is, sometimes writes slower, it will have a smaller class. Differently speaking: the class ensures that the speed of the map on any site of the record will not fall below a certain threshold. Why is it needed? The class is needed for devices that quickly write information and cannot wait. This is mainly camcorders who need to record a video, because if the memory card does not have time to record a frame during his shooting, "the train will leave": you will need to write the next frame, the next and some part of the information chamber will have to "throw out "That bad will affect the picture quality. So, again, we take the instructions and look at it is recorded about the memory card class. If nothing - you can save if the class is specified - take the specified or higher.

Finally, the latter, with which you need to decide when buying a MICROSD / MicroSDHC memory card - adapter or adapter on SD.. This is such a plaster of the 43rd more card, with which your Micro card turns into a "big" SD / SDHC card (see them below). Sale of cards are sold with an adapter, part without. Evaluate whether you need such an adapter, we need to take into account your devices: cameras, old e-books etc. And also do not forget about your card reader: maybe it does not read Micro cards directly and then the adapter does not hurt you at all. In general, the adapter expands your capabilities in the "case of what". On the other hand, will you find it when you need it in your table? The choice is yours.

Now go to K. SD./SDHC cards.
I will not talk about them: these are the eldest MicroSD / MicroSDHC card brothers. Everything that has been said about those is also true for these overgrowths (although more likely "micro" cards are undercurrent, because at first, on the contrary, they were big, and then their reduced fellow appeared). The only thing they don't have adapters, as they do not need to adapt them to themselves, well, they are used in more voluminous devices - it is, first of all, soap cameras and all sorts of e-books (however, in the latter, more and more often put MicroSDHC cards ).

M2. Full name MEMORY STICK MICRO M2 - This cards are very similar to MicroSD / Microsdhc. Differ in that they are used in phones and players of the company SonyIt was more correct to say "used" because Sony finally realized that "one in the field is not a warrior" and began to use the formats of the SD line. If you are a happy owner of Sony, be careful, check which card you have! No classes do not have these cards.

The last card that we will look at is Compact Flash. (Compact Flash is pronounced in Russian, but it is written almost always in English, probably because writing a "compact" about the biggest map in today's market somehow not literary :-).
These cards due to their decent size have their undoubted advantages: the capacity is many times more than other cards and inaccessible while the SDHC speed for the memory cards. Therefore, they are used in large "advanced" cameras and other demanding devices. It remains to add that the speed (for this time without "nasty" with a guaranteed minimum) is denoted by the number and letter X. For example: 133x, 266x, 300x. Number indicates how many times this map Faster some minimal standard CD reading speed.

If you have not met in this review Your favorite is a prehistoric map - do not be mistaken! You will definitely find it in Wikipedia. I intentionally limited himself only to the types of information media to date, so as not to score with a hat with unnecessary information and not to turn an article in the archivist. So, now you are armed with knowledge, and the choice of the desired flash drive will not be a problem for you. Enjoy the shopping!