Edge10 4TB NAS400. Total storage capacity: 4000 GB, Hard drive capacity: 0 GB, Maximum capacity: 4 TB. Internal memory: 0.125 GB, Flash memory: 16 MB. Supported network protocols: SMB, CIFS, FTP, AFP, NFS, Data transfer rate (max): 1000 Mbit/s. Power consumption (typical): 200 W. Minimum processor: Intel Pentium II, G4, Minimum RAM: 64 MB, Compatible operating systems: Win 2000/XP Linux 9.0 Mac 10.2.8+