LaCie 301428U 3TB Big Disk Quadra eSATA/FireWire800/FireWire400/USB 2.0 Desktop Hard Drive 3 TB external hard drive designed by Neil Poulton Compatible with both Mac and PC Plug-and-play usability with automatic backup Connects through eSATA, Firewire400, Firewire800, or USB 2.0 interfaces Measures 1.7 x 10.4 x 6.8 inches (WxHxD); 3-year limited warranty