Nilox EXTRS232, 11811" (300 m) Nilox EXTRS232. Maximum transfer distance: 11811" (300 m). Operating voltage: 5 V, Power consumption (typical): 5 W. Dimensions (WxDxH): 4.02 x 1.02 x 1.02" (102 x 26 x 26 mm), Weight: 3.09 lbs (1.4 kg)