Specifications: Motor Type: Sensored/ 4Pole Sensored Brushless Motor Limit: >5.5t (specification when using the fan) Operating Voltage: 3.7-7.4V Forward/Brake/Reverse: Yes Full Aluminum Case/Heatsink: Yes Typ. Voltage Drop @20A per Phase: 0.016V Rated Current per Phase: 424A Plugged 30x30x10mm Fan: optional BEC Output: 6V/7.4V Built-in DC Booster, Continuous Current of 3A BEC Ouput Short Protection: Yes "Boost 0" Mode: Yes Multi-frequencey system: Yes Power Wires: 12 awg Case Size: 32.9x34.6x21mm (without fan) Weight: 50g (without cables and fan)