Флешки Transcend Jetflash 700 USB 3.0 16 GB и 32GB c EBAY 1.5 года полет нормальный.

16G
для USB3
Sequential Read (Q= 32,T= 1): 73.179 MB/s
Sequential Write (Q= 32,T= 1): 17.588 MB/s
Random Read 4KiB (Q= 32,T= 1): 11.307 MB/s [ 2760.5 IOPS]
Random Write 4KiB (Q= 32,T= 1): 0.099 MB/s [ 24.2 IOPS]
Sequential Read (T= 1): 72.139 MB/s
Sequential Write (T= 1): 15.936 MB/s
Random Read 4KiB (Q= 1,T= 1): 9.137 MB/s [ 2230.7 IOPS]
Random Write 4KiB (Q= 1,T= 1): 0.027 MB/s [ 6.6 IOPS]

для USB2

Sequential Read (Q= 32,T= 1): 30.697 MB/s
Sequential Write (Q= 32,T= 1): 14.207 MB/s
Random Read 4KiB (Q= 32,T= 1): 4.933 MB/s [ 1204.3 IOPS]
Random Write 4KiB (Q= 32,T= 1): 0.099 MB/s [ 24.2 IOPS]
Sequential Read (T= 1): 32.086 MB/s
Sequential Write (T= 1): 14.259 MB/s
Random Read 4KiB (Q= 1,T= 1): 4.430 MB/s [ 1081.5 IOPS]
Random Write 4KiB (Q= 1,T= 1): 0.026 MB/s [ 6.3 IOPS]

32G

USB3

Sequential Read (Q= 32,T= 1): 110.467 MB/s
Sequential Write (Q= 32,T= 1): 27.287 MB/s
Random Read 4KiB (Q= 32,T= 1): 5.399 MB/s [ 1318.1 IOPS]
Random Write 4KiB (Q= 32,T= 1): 1.241 MB/s [ 303.0 IOPS]
Sequential Read (T= 1): 109.893 MB/s
Sequential Write (T= 1): 30.194 MB/s
Random Read 4KiB (Q= 1,T= 1): 5.289 MB/s [ 1291.3 IOPS]
Random Write 4KiB (Q= 1,T= 1): 1.241 MB/s [ 303.0 IOPS]

USB2

Sequential Read (Q= 32,T= 1): 24.695 MB/s
Sequential Write (Q= 32,T= 1): 18.586 MB/s
Random Read 4KiB (Q= 32,T= 1): 2.484 MB/s [ 606.4 IOPS]
Random Write 4KiB (Q= 32,T= 1): 0.923 MB/s [ 225.3 IOPS]
Sequential Read (T= 1): 25.585 MB/s
sequential Write (T= 1): 19.923 MB/s
Random Read 4KiB (Q= 1,T= 1): 2.363 MB/s [ 576.9 IOPS]
Random Write 4KiB (Q= 1,T= 1): 0.918 MB/s [ 224.1 IOPS]