Iomega StorCenter Pro 200r 1TB. Processor clock speed: 3.2 GHz. Total storage capacity: 1000 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, Supported network protocols: TCP/IP, IPX, NetBEUI, CIFS/SMB, NFS, AFP, HTTP 1.1, FTP, WEBDAV, Data transfer rate (max): 1000 Mbit/s. Bundled software: Iomega NAS Discovery Pro Software, EMC Retrospect Express PC (v7.5) & Mac (v6.1), Backup 11.5,, Operating system installed: Windows Storage Server 2003 R2