Cavalry Storage CAUM Series 1 TB USB External Hard Drive (Black) CAUM3701T0-B 32 MB Cache Hard drive activity LED Unit Includes - One (1) year manufacturer's warranty, 1 TB 3.5-inch 16 MB cache hard drive in a single bay aluminum enclosure System Requirements - Available USB port, Mac OS 9.x or newer, Windows 98SE / Me / 2000 / XP / Vista