Iomega px4-300d 4TB, StorCenter. Total storage capacity: 4000 GB, Hard drive capacity: 1000 GB, Hard drive rotational speed: 7200 RPM. Internal memory: 2048 MB, Maximum internal memory: 2 GB. Processor family: Intel Atom, Processor clock speed: 1800 MHz, Compatible processor series: Atom. Compliance industry standards: IEEE 802.3, IEEE 802.3u, Supported network protocols: FTP, TFTP, HTTP, HTTPS, CIFS/SMB/Rally, NFS, AFP/Bonjour, Networking features: Gigabit Ethernet. Cables included: LAN (RJ-45)