HP ProCurve 10Base-T hub 8. Power supply: 110–127 VAC / 200–240 VAC; 50–60 Hz. Weight: 0.7 kg. Operating temperature range (T-T): 0 - 55 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 15 - 95 %. Dimensions (WxDxH): 199 × 121 × 40 mm