+ For the design - for speed

I love this product, its design is just perfect, the key size is very compact which is very convenient.
But I have a few criticisms, for the 3.0 is extremely long, I was at 10Mbit / s on a 3.0 port, strange, counterfeit?
Another point to review the attachment, it is handy but not very solid, that of my key was starting to take off when I do not use it. I understand that some customers have lost theirs, luckily mine was careful in my kit.