Key received early December 2014, Transfer speed worthy of a small external hard drive and high-quality plastic (we feel that the key is robust) So far so good, but yesterday (the 2015 7mars to specify the lifetime of the key) 2 of my 3 USB ports to detect more and 3rd detect five seconds and repeat constantly. I even try to plugged into a touch pad via an adapter thinking that it could come to my PC but even the shelf does not detect. Bad luck or manufacturing defect, I do not know but I would avoid the 256GB still some time.
![[7-Port USB 3.0 + 2 -Port load] Unitek USB 3.0 ports HUB 9 (7 + 2 USB 3.0 ports load ports) with 12V 4A AC adapter and USB 3.0 cable (Electronics)](https://img.tgreer.com/thumb/85x85/a/30/a30b07d60f691d3b.jpg)