Acer Aspire easyStore. Total storage capacity: 1280 GB, Hard drive capacity: 640 GB, RAID levels: 0, 1, 5, JBOD. Supported network protocols: FTP/SMB, Networking features: Gigabit Ethernet. Power consumption (typical): 150 W. Weight: 5.3 kg. Compatible operating systems: Windows Vista, Windows XP, Windows 2000, Linux, Mac OS X