The ProfessionalG-RaidII1.5TB Triple Interface ExternalHardDrive is the latest storage technology currently available with 7200-RPM SATA IIharddrive with up 2 16MB of cache & the new Oxford 924 bridge chipset. G-RaidII offers superior performance & reliability 4 demanding content creation applications. G-RaidII is specifically designed 2 support professional multi-stream video editing applications including audio/video editing, 2D/3D animation & digital imaging such as Apple Final Cut Pro & Adobe Premiere Pro. It supports the simultaneous playback of multiple layers of video in real-time in Final Cut Pro, Premiere & Xpress. G-RaidII is equipped with a small & quiet cooling fan 2 ensure reliable operation & data integrity. Pre-formatted fro Mac OS X, the G-RaidII can easily be reformatted 4 use with a Windows system. Integrated cooling fan 4 long life & reliable operation System Requirements - FireWire or USB 2.0, Mac OS X 10.3.x or higher, Windows 2000, XP Dimensions - Length 9.25 x Width 5.125 x Height 2.875 (235x130x73mm) Weight - 3.85 pounds, 1.75 kg