Iomega 750GB StorCenter Pro 250d Series + Print Server. Processor clock speed: 3.2 GHz. Total storage capacity: 750 GB, Hard drive capacity: 250 GB, Hard drive rotational speed: 7200 RPM. Internal memory: 0.5 GB, Internal memory type: DDR2. Compliance industry standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, Supported network protocols: TCP/IP, AppleTalk, IPX, NetBEUI, Data transfer rate (max): 1000 Mbit/s. Bundled software: Iomega NAS Discovery EMC Retrospect Express