Compliant with SATA 3.0 specification. Data transfer rate up to 5.0Gbps for SATA 3.0. Compliant with USB 3.0 specification. Date transfer rate up to 5.0Gbps for USB 3.0. 12V DC jack available (power cable not included) for 3.5" HDD/SSD. USB bus power mode. No external power required for 2.5" HDD/SSD. Supports Plug !#!amp!*! Play and Hot-swamping. No driver required for any OS. Please note that for 3.5" SATA、 12V DC power is required. Dimensions: 15.75 in x 1.97 in x 0.59 in (40.0 cm x 5.0 cm x 1.5 cm) Weight: 1.23 oz (35 g)