Linksys EtherFast Network Attached Storage. Hard drive capacity: 120 GB. Power requirements: 12V 5A. Weight: 3.7 kg. Operating relative humidity range: 10 - 85 %, Operating temperature range (T-T): -5 - 50 °C, Storage temperature range (T-T): -20 - 70 °C. Compatible operating systems: Windows 95/98/Me/NT 4.0/2000/XP