Works very well with 2.5" SSD. Used to increase space on a Comcast DVR with an eSATA port (non-powered) and a USB port (powered). I didn't read the description carefully. I was hoping to use it with the 3.5" drive I bought from Revain in the same order. The USB port did not provide enough power. My fault however. This cable works exactly as described. Tested with regular 2.5 inch laptop drive and it works fine. The USB port provides enough power.