The adapter allows the connection of a 2.5" SATA hard drive to USB 3.0 computers. Specifications: - compatible with USB3.0 and earlier - works with 2.5" hard drives Plug & Play connection possible while the computer is on - supported systems: Win 10 8, 7 / VISTA / XP / 2000 / ME / 98 /, Mac OS 9.2 and higher and Linux - power for device - USB connector or DC 12V 2A - cable length approx. 30 cm. Usage: Connecting a drive without the need to unscrew the computer case, a quick and convenient form of data transfer and security. weight: 50g Number of pieces in carton: 300