Iomega MiniMax 500 GB USB 2.0/FireWire 400 Desktop External Hard Drive 33746 Device Type - Removable Hard Drive Dimensions WxDxH - 6.5" x 6.5" x 1.6" Weight - 2.3 lbs Weight - 2.3 lbs Connector -- 3 x 4-pin USB 2.0 Powered USB, 3 x 6-pin IEEE 1394a Powered FireWire