Synology 2-bay NAS server. Total storage capacity: 4000 GB, Hard drive capacity: 0 GB, Hard drive interface: USB 2.0. Internal memory: 128 MB. Processor clock speed: 800 MHz. Supported network protocols: CIFS, AFP (3.1), FTP, NFS, Telnet/SSH, Networking features: Gigabit X1. Management protocols: PPPoE, UPS (USB 2.0)