Specifications: Name: USB3.0/USB2.0OptionalExternal hard disk box Material: ABS Surface treatment: frosted surface External transfer interface: USB3.0/USB2.0 Transmission speed: 5GB/sec MAX Support hard drive type: 2.5 inch SATA notebook hard drive and SSD solid state drive, mechanical hard drive and solid state drive Compatible operating systems: for Windows 98/SE/ME/2000/XP/Vista/ Win7/win8/Win10 Mac OS 8.6 and the latest version External interface: USB3.0 to USB3.0 micro-B/USB2.0 to USB2.0 micro-B Color: black Product size: about 11.5*7.5*1.3mm/0.45*0.3*0.05in Packing List: 1*2.5 inch hard disk case (Not included Hard Disk) 1*USB cable Note: 1. New hard disk. Please format and partition the hard disk before using the hard disk box. 2. This product is a hard disk box, does not contain hard drives and other accessories!