Works very well on the computer (USB 3.0) and with my Sony Xperia Z1 Compact. Again, the transmission is lightning fast! What could be seen in the photos is not good and where I had some concern is the durability of the loop of the fixing. However, the eye is directly integrated into the aluminum body and not in the black plastic flap. Therefore, tearing of the eye is excluded. I have attached the memory stick attached to a keychain. I give an unqualified recommendation to buy!