Use your external SATA/eSATA drives with your PC's USB port. Supports Plug & Play for 2.5" & 3.5" hard drives/enclosures or optical drives. Use SATA/eSATA devices with your PC's USB port!Supports USB 2.0 (up to 480 Mbps), Plug & PlayPowered through the USB port, no extra cable requiredSupports SATA Generation 1 (1.5 Gbps)