Iomega Desktop Hard Drive 500 GB Hi-Speed USB 2.0 External Hard Drive - 33654 500GB external hard drive with USB 2.0 connection USB 2.0 offers up to 480 Mbps transfer rates 7200 RPM and 8MB cache buffer for speedy performance 1-year limited warranty Device measures 4.75 x 1.375 x 8.75 inches (WxHxD)