Iomega Home Network Hard Drive (NAS) Ethernet/USB 2.0, 320GB (33813) 500 GB network hard drive allows up to four users to share the same drive on a network 10/100 Mbps Ethernet connection for quick data transfers 7200 RPM and 8MB cache buffer for speedy performance 1-year limited warranty Device measures 4.8 x 1.3 x 9.4 inches (WxHxD)