Synology Disk Station DS109j. Total storage capacity: 0 GB, Hard drive capacity: 0 GB, Hard drive interface: Serial ATA II. Internal memory: 0.03125 GB. Supported network protocols: CIFS, AFP (3.1), FTP, NFS, Telnet/SSH. Power requirements: 100 - 240 V AC, 50/60 Hz. Weight: 0.81 kg