Buffalo LinkStation Live with BitTorrent 640GB. Total storage capacity: 640 GB, Hard drive capacity: 640 GB, Hard drive rotational speed: 7200 RPM. Compliance industry standards: IEEE802.3ab/IEEE802.3/IEEE802.3u, Supported network protocols: TCP/IP, AppleTalk, SMB/CIFS, AFP, FTP, DNLA, Networking features: Gigabit Ethernet. Management protocols: HTTP, NTP. Power requirements: AC 100-240V 50/60Hz, Power consumption (typical): 17 W. Weight: 1.1 kg