Introductions: 1. Connect the 2.5 inch SATA hard disk to the computer, and the function of mobile hard disk box can be easily built. 2. JMS578 chip master control, transmission is very stable USB 3.0 interface, faster and more stable than USB 2.0, and downward compatible with USB 2.0/USB 1.1. 3. Dual USB power supply, it can support high-speed hard disk with speed up to 7200rpm without external power supply. 4. Support 2.5 inch SATA hard disk, small size, plug and play, easy to carry. Specifications: Type: Dual USB Powered SATA 22 Pin Hard Drive USB 3.0 Cable Material: Copper Wire Length: 30 cm/11.81'' Secondary Line Length: 10 cm/3.94'' Weight: 37 g Product Size: 330 X 45 X 13 mm/12.99 X 1.77 X 0.51'' Package Size: 150 X 105 X 15 mm/5.91 X 4.13 X 0.59'' Transmission Interface: USB 3.0, SATA 22 Pin Transmission Speed: 5 Gbps Application Object: for HD/SSD with 2.5 inch SATA interface Hot Swap: Support Power Supply Mode: Double USB power supply at host end Material: Plastic System Support: for Windows 2000/XP/7/8/Vista/Mac and above Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement.