Hamlet HEXD3UTX500 NDAS storage. Total storage capacity: 500 GB, Hard drive capacity: 500 GB, Hard drive interface: IDE/ATA. Supported network protocols: TCP/IP, Data transfer rate (max): 480 Mbit/s. Cables included: USB. Weight: 1.2 kg. Minimum processor: Pentium II, Compatible operating systems: Mac OS 10.2.8 - Mac 0S 10.4.x, Windows 2000/XP., Minimum system requirements: USB