R6208SB is a 8-channel high-speed receiver from Futaba, supports S.BUS protocol, compatible with FAST-2.4GHz (multi-ch) system. This receiver features dual antenna diversity technology, size is 0.98 x 1.86 x 0.56 inches (24.9 x 47.3 x 14.3 mm), weight is 0.49 oz (13.8g), power requirement is 3.7V to 7.4V (voltage range is 3.5 to 8.4V). When using ESC's regulated output, please make sure the battery capacity is greater than or equal to the receiver's required capacity.