Iomega px4-300d 4TB (4 x 1TB), StorCenter. Total storage capacity: 4000 GB, Hard drive capacity: 1000 GB, Hard drive rotational speed: 7200 RPM. Internal memory: 2048 MB. Processor family: Intel Atom, Processor clock speed: 1800 MHz. Compliance industry standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, Supported network protocols: CIFS/SMB/Rally, NFS, AFP/Bonjour, FTP, TFTP, HTTP, HTTPS, WebDAV, Windows DFS, Networking features: Gigabit Ethernet. Management protocols: SNMP