I adapted my disks 3.5 "with a card retrieved from an old external drive case so far and the performance was not at the rendezvous. I bought this product to benefit from the speed of USB 3.0 and insurance product that provides a "pro" and I am anything but disappointed.
Most: -Reliability -Rapidité (USB 3.0) -Design
Cons: -The Button "on / off" fairly average quality.