Tripp Lites U256-035 is an inexpensive way to create an external USB storage drive, by utilizing an unused or idle 3.5" IDE/PATA hard disk drive. Simply insert any manufacturers PATA / IDE 3.5" hard drive into the rugged aluminum case, and plug the included USB cable into the a computer or hub USB. Includes metal stand for vertical mounting. External drives are great for storing large files like photos, music, movies, etc. Compatible with Windows 98SE/Me/2000/XP/Vista/Win7 or MAC OS 9.0 and above. Supports USB 2.0 data transfer rates up to 480Mbps.