ordered, delivered instantly, reclaims and reacts immediately Class

Connected, good first impression, good workmanship, and only connected to a device for testing.
And was disappointed. My card reader which otherwise via USB 3.0 cards virtually "empty sucks" with up to 120 Mbit, was slowed down to below 40 Mbit. Although connected to the same port and only one device is connected.
My USB 2.0 Hub is insignificant slow - would have the money to save so ...
Under "SuperSpeed" I understand something else ...
And then came a great experience.
Due to the review of the seller got in touch with me. Asked about the problem and sent me immediately to a new device !!!
New device, new luck? Yes, clearly. The promised speed was reached, everything was great!
A great customer service !!! Thus, an absolute recommendation on my part.
Thanks again to the very friendly customer!