Promise Technology SmartStor DS4600. Total storage capacity: 0 GB, Maximum capacity: 8 TB, RAID levels: 0, 1, 5, 10. Power requirements: 100-230V, 50-60Hz. Weight: 2.5 kg. Operating temperature range (T-T): 5 - 35 °C, Relative humidity: 10 - 85 %. Compatible operating systems: Windows 2000/XP/2003/Vista Linux/Unix Mac X 10.4