Transcend StoreJet 25M2 2.5 Inch 640 GB External Hard Disk

Transcend storejet 25M2 black color 8MB buffer, 640 GB capacity,USB 2.0 connectivity, dimensions 82.4 x 20.4 x 134.0 mm, OS Supported Windows 2000, Windows XP, Windows Vista, Windows 7, Mac OS 9.0 or later, Linux Kernel 2.4 or later, 10 minutes power saving mode, no external power source required, 5400 RPM speed, In The Box has External portable hard drive, USB cable and Quick start guide. Size is 2.5 inch and one year limited warranty. Weight is 206g.