Kingston microSD UHS-I U3 32 GB

The possibilities of a memory card manufactured by Kingston are immediately hinted at by its packaging, on which the simple abbreviation "4K" is applied.

Ultra high resolution

The miniature dimensions allow the drive to be used when shooting ultra-high-resolution video using a smartphone or action camera (for example, GoPro HERO4 Black Edition), and the included microSD-SD adapter does not exclude the possibility of inserting a memory card into an adult camera or video camera. In the course of testing the flash drive, specialists from the Kaddr.com resource found that it feels confident in the port of the Panasonic Lumix G7 mirrorless camera, on which videos are written at a resolution of 3840x2160 pixels with a bit rate of up to 100 Mbps.

High speed

Out of the box, it is stated that the speed of reading a memory card should reach 90 Mb / s, and writing — 80 Mb / s. In fact, the same values are obtained in fact: 82 Mb / s and 75 Mb / s, respectively. The speed of data exchange sags only in the case of processing large amounts of information, including many small files (up to 1 Mb in size). It's a sin not to mention the support for the UHS-I Class 3 high-speed bus, which guarantees the recording of information at a speed of at least 30 Mb / s.

All-security

A nice addition to the capabilities of the drive is its all-around protection — the memory card is not afraid of drops, water, vibrations and X-rays, and is also capable of operating in a wide temperature range(from -25°С to +85°С).

An important nuance. By default, microSDHC memory cards have the FAT32 file system, the maximum file size of which is limited to 4 GB (this is only enough for 5 minutes of continuous recording of 4K video with a frame rate of 25 fps and a bit rate of 100 Mbps). In order for the drive to record 4K videos with normal length, it must be formatted in another format (NTFS or exFAT).