The LaCie d2 Quadra Hard Disk provides up to 500GB capacity in a relatively compact device. Fully loaded with all the best interfaces - eSATA 3Gbits, FireWire 800, FireWire 400 and USB 2.0 - it offers complete universal connectivity for PC and Mac users. Perfect for digital content creation, audio/video editing, DVD authoring, and web animation, etc., the d2 Quadra can handle multiple demanding professional tasks. It can be daisy-chained via FireWire or connected to your DV camera and is even bootable in FireWire for Mac and in eSATA for Mac/PC. Advanced features include 3-level power management (Auto/On/Off) and software RAID 0/RAID 1 potential when daisy-chained with other drives. The unique, fanless aluminum heat sink design with 60% more surface area for heat dissipation keeps it quiet and as safe as possible at all times. With fast burst transfer rates of up to 105-115MB/s via eSATA, this industry-leading hard disk delivers superior performance. Setup and use is quick and easy; the preloaded LaCie Setup Assistant helps format the hard disk according to your needs. Plug & Play LaCie Shortcut Button 500GB Hard Drive Capacity 7200 RPM 16MB Cache Buffer eSATA, FireWire 800/400 and USB 2.0 and 1.1 Interface Up to 115MB/sec Burst Transfer Rate with eSATA Up to 85MB/sec Burst Transfer Rate with FireWire 800 Up to 40MB/sec Burst Transfer Rate with FireWire 400 Up to 35MB/sec Burst Transfer Rate with USB 2.0 System Requirements - Windows 2000/XP/Vista; Mac OS X 10.2.8 (10.3 for eSATA) or higher; Available eSATA, FireWire 800/400 or USB 2.0 port Approximate Unit Dimensions - 1.7(W) x 6.3(H) x 6.8(D) Approximate Unit Weight - 3.31 pounds