Netgear ReadyNAS 2100 RNRX4450. Total storage capacity: 2000 GB, Hard drive capacity: 500 GB, RAID levels: 0, 1, 5. Internal memory: 1 GB. Supported network protocols: CIFS/SMB, AFP 3.1, NFS v2/v3, HTTP/S, FTP/S, Rsync, WebDAV, UPnP, Data transfer rate (max): 1000 Mbit/s. WAN connection: RJ-45. Weight: 9.5 kg