When choosing a flash drive or USB-drive should be based on planned use of the device.
How to choose a flash drive: evaluation criteria
Flash drives differ not only in volume, but also in others parameters:
Standard, it is a form factor;
Read / write speed;
Standard (form factor)
Standard is the most important parameter of flash drives. It is he determines how this drive can be used.
Standard USB drives are in USB stick format and designed to store and transfer information from one computer to another. They plug into a regular USB Type A port and cross-compatible between devices from different manufacturers, with different operating systems and technical characteristics.
But if you need a flash drive for a DVR, camera or of such a “mobile” device, then SD is most likely suitable or microSD. The specific specification can be found in the documentation for device or markings on its case.
Read / write speed
This parameter determines how fast the data will be. copied to and from a USB flash drive. In the vast majority of models mid-price range, it depends on the standard drive. That is, USB 2.0 flash drives provide an average speed read-write at 480 Mb / s, and with USB 3.0 – about 5 Gb / s.
It is worth remembering that the write speed is always lower than the speed reading. This is due to the features of the USB-drives. Besides Moreover, the write speed of one large file is much higher than records of many small, but having the same volume – for the same reason. Therefore, if you plan to “throw” a large flash drive files – you should choose a drive with a high speed value records. If it will be used to store documents, photos or music – this parameter can be neglected.
The volume of the USB drive is one of its most important parameters. Exactly it determines how many files can be placed on it. Besides Moreover, the price of the drive directly depends on the capacity.
The relationship between price and storage capacity is non-linear. For example, flash drives that have a volume of less than 8-16 GB have a large the cost of a single gigabyte. The most economical drives on 32 GB Flash drives of 64 GB or more are again of high cost separate gigabyte.
It is also worth remembering that the volume indicated in the specifications of the flash drive different from the actual. This is due to the features of the count. megabyte. So, on a flash drive with a “16 GB” label on its packaging, actual capacity will be approximately 14.7 GB. The flash drive on the “32 GB” – approximately 29.5 GB.
This parameter determines the usability of the flash drive. is he composed of materials, shape and size of the device.
The most optimal variant of flash drive housing materials is plastic (or polycarbonate). Metal storage, of course, more resistant to mechanical stresses such as bumps, scratches and etc. – however, they can cause a breakdown of static electricity on poorly grounded system unit case, which, in turn, will lead to data corruption or complete loss of functionality devices. Flash drives whose case is made of wood, leather or other materials look attractive, but cost enough expensive.
The shape of the device largely determines the convenience of its connection. Large flash drives made in the form of funny animals, cars and etc. They have only one advantage – attractive appearance. However, they are quite difficult to insert both into a laptop and into system unit whose back panel is occupied by connectors of other devices.
The size of the flash drive determines the convenience of its removal. Tiny drives are very difficult to get out of the back of the slot system unit. And they jump out of wet fingers. Acquiring “extremely compact” flash drives makes sense only in that in case they will be used to speed up the work computer technology ReadyBoost.
Additional features make using a flash drive more convenient or increase its functionality. However, there are devices are a little more expensive than conventional ones. Among these features are:
MicroUSB or Lightning connector for use with a smartphone by OTG technologies (On-The-Go, viewing drive contents and operations with it directly on a mobile device). Conveniently, if you often have to transfer files to the smartphone’s memory;
Protection against dust, moisture, x-rays. First two parameter is very practical for all users, the third only needed by travelers;
Hardware and software encryption. Convenient if you need to store the flash drive has sensitive data. Inconvenient if you have to often insert a drive into public computers (for example, in print centers) or give to friends.
Among the manufacturers of conventional flash drives, SanDisk and Transcend If an OTG drive is required, it is best to reverse attention to Leef products. If it’s about SD or microSD, then one of the best manufacturers of such flash drives is Samsung company.
Transcend – one of the largest manufacturers of budget flash drives level. Its USB drives are not expensive. In addition, Transcend there are programs that help fix the flash drive in case damage or at least restore information from it.
SanDisk is better known as a manufacturer of high-end flash drives. If you need a USB 3.0 drive or increased capacity (more 128 GB), it is worth paying attention to the products of this company.
Leef is a manufacturer of OTG flash drives. Recent models even work with iOS and support USB 3.0.
Samsung releases the fastest and most reliable microSD / SD flash drives. But they cost more than competitors.
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Attention! This material is subjective opinion of the authors of the project and is not a buying guide.