Transcend Premium 300X microSD UHS-I 64 GB (TS64GUSDXC10)

The Taiwanese company Transcend indicates the speed characteristics of a flash drive in the old fashioned way — in the form of a multiplier of 300x, where the minimum CD playback speed (150 kB / s) acts as an "X". Through simple mathematical calculations, it is possible to find out that the maximum data exchange rate can reach 45 Mb / s.

Speed indicators

In fact, the reading speed reaches the maximum value only when working with several files of a small volume. Often it fluctuates between 20-25 Mb / s. The data recording speed is even less — 15-20 Mb / s, which coincides with the claimed value from the manufacturer (20 Mb / s). The card belongs to the 10th class, which is confirmed by the minimum guaranteed write speed of 10 Mb / s.

Element

Despite the claimed support for the UHS-I high-speed data bus, the memory card is more focused on interaction with portable devices that do not require high speed characteristics. She will cope with the work in a low-cost DVR and will feel good in a smartphone. But using it for burst photography or recording high-resolution video with a camera is not recommended. For these purposes, there are faster models of drives.

Data security

The card is able to recognize and correct errors when copying data, thus ensuring the reliable safety of information. And even in defective copies, which are more common than we would like, the data remains intact — the flash drive often fails, blocking access to writing and erasing information, while leaving access to copying it. On top of that, in terms of price-volume ratio, the drive is one of the most attractive options on the market.