Feature:1. Portable external hard drive provides enough storage space for your music, movies and other files.2. Portable additional storage device powered by USB 3.0, compatible for OS X/XP/Win7/ Win8/Win10/Linux.3. Plug and play, no need to install software, suitable for notebooks, allinones, desktop computers.4. Convenient to use and with good performance, with small size, easy to carry and store.5. There are 80G-2TB various specifications, you can choose according to your different needs.Specification:Item Type: Mobile Hard DriveModel: GK18Cache: 8MBInterface: USB3.0Speed: 50-130M/SOperating Temperature: 0~75Operating Voltage: 5V5%Applicable System: For OS X/XP/Win7/ Win8/Win10/LinuxApplication Scenarios: Notebook, all-in-one, desktop computerOperating Power Consumption: 3W-5W80G 5400 transfer 50M/S read 80M/S120G 5400 transfer 50M/S read 80M/S160G 5400 transfer 70M/S read 80M/S250G 5400 transfer 90M/S read 95M/S320G 5400 transfer 90M/S read 95M/S500G 5400 transfer 100M/S read 110M/S1T 7200 transfer write 90M/S read 130M/S2T 7200 transfer write 90M/S read 130M/SHow to Use: Use the USB cable to insert the mobile hard disk, connect the other end to the computer or other equipment, and then click the U disk icon on the desktop of the computer, then you can copy the files in the hard disk or copy the files in the computer into the mobile hard disk. After completion, click the U disk icon on the desktop, right-click and select pop-up to disconnect. (with a USB to USB cable).Package List:1 x Hard Disk1 x Connecting Line1 x Storage Bag