I bought today and tested such a 32 GB flash drive. It has 1 GB of cache. Reading speed is close to 130 Mb/s advertised on the package. Large files (video, music) with a total volume of up to 1.3-1.4 GB are recorded at a speed of about 60 Mb / s. After the cache memory is freed, the speed drops to about 20 Mb / s. For example, recording 2 GB of music (12 large tracks) took 50 seconds. USB 3.1 port used. The flash drive is very small, very fast for its size, except that it heats up a lot under load. Bought for 420. - very satisfied. The question of reliability remains, time will tell.
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