Nortel Wireless Gateway 7250. Dimensions (WxDxH): 438 x 533 x 89 mm, Weight: 4500 g. Power requirements: 90-264 VAC, 2.0 @ 90 VAC, 47-63 Hz. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 10 - 90 %. Internal memory: 128 MB