The LC-25BU3 support the hardware side (also) SATA III. It reaches top speeds in conjunction with USB 3.0. The SSD has been properly recognized the USB 3.0 port and provides speed excessively top scores significantly beyond SATA II. The overall package for the price (about 12) for customers seeking a cost-effective, but above all a functioning external "SATA III. To USB 3.0 solution "need highly recommended and out of competition.