I tested the drive with CrystalDiskMark and giving at a decent Einduck. The following is an overview of the test results: (see uploaded by me picture for a better view)
CrytsalDiskMark 3.0.1 x64
USB 2.0 - 5x100MB
-------- Read - Write
Seq .: 24.74MB / s - 17.08MB / s
512k: 24.42MB / s - 1.742MB / s
4k: 3.678MB / s - 0.014MB / s
USB 3.0 - 5x100MB
-------- Read - Write
Seq .: 71.81MB / s - 21.82MB / s
512k: 66.18MB / s - 2.557MB / s
4k: 9.434MB / s - 0.019MB / s
USB 3.0 - 5x1000MB
-------- Read - Write
Seq .: 79.93MB / s - 23.39MB / s
512k: 72.06MB / s - 1.334MB / s
4k: 9.060MB / s - 0.011MB / s
Positive immediately notice the maximum value for sequential read / write, the s still exceeds here with about 80/23 MB / the values specified by the manufacturer (60/20 MB / s) for a piece. The heat generation for large files adheres absolutely limited or hardly exists, because it shows good as no heating at the outside of the housing. The key has been detected so far with no problems at all USB 3.0 and USB 2.0 slots used and also transfer data without errors.