USB confused

[Train]

A guideline of our standard flash drive read/write speeds is as follows:
USB 2.0:
Sequential write speed range = 4~10 MB/s
Sequential read speed range = 15~25 MB/s

USB 3.0:
Sequential write speed range =10~20 MB/s
Sequential read speed range = 40~50 MB/s

http://www.flashbay.com/support/faq/...ad-write-speed

[Train]

And not all USB are identical. I filtered this link for the 8 GB size
http://usbflashspeed.com/8Gb

[fink]

I will return it in the morning.

If you had any important or personal data on that drive I'd wipe it before I gave it back.