Pros: Worked well when it was functional. Not quite USB 3.0 speeds but faster than 2.0.

Cons: Failed after two months use max. It is no longer recognized by any of the computers or OS's that it was tried on. Not recognized by Disk Utility. I read the reviews and took a gamble knowing it might fail. It's no surprise that it has received many more negative reviews since I purchased it. Heed everyone else's warning, do not purchase this item unless you like wasting your money.

Overall Review: Thought I found a decent deal, was ultimately deceived.