Wiebetech RTX410-XJ, 0TB, US. Total storage capacity: 0 GB, Hard drive capacity: 0 GB, RAID levels: JBOD. Power supply: 220 W, AC input voltage: 100-240 V, AC input frequency: 50/60 Hz. Operating relative humidity range: 5 - 95 %. Compatible operating systems: Windows XP, Vista, Windows 7 Mac OS X, Host interface: SFF-8088, Fan: 8cm