Buffalo LinkStation Quad 1.0TB. Total storage capacity: 1024 GB, Hard drive capacity: 250 GB, Hard drive rotational speed: 7200 RPM. Compliance industry standards: IEEE802.3ab / IEEE802.3u / IEEE802.3, Supported network protocols: TCP/IP, Cabling technology: 1000BASE-T / 100BASE-TX / 10BASE-T. Management protocols: HTTP. Power requirements: AC100-240V, 50/60 Hz, Power consumption (typical): 45 W. Compatible operating systems: Windows Vista, Windows XP, Windows2000, Windows Server 2003, Windows Server 2008, Mac OS 10.3.9