NOTE:TYPE B WITHOUT MOTOR WIRES, CONNECTORS ARE WELDED DIRECTLY TO THE PCB BOARD.1.1 Output: Continuous 30A, burst 40A up to 10 seconds. 1.2 Input Voltage: 2-6 cells lithium battery or 5-18 cells NiMH battery. 1.3 BEC: Not available. 1.4 Refresh rate of the throttle signal: 50Hz to 432Hz. 1.5 Control Signal Transmission: Optical/electrical coupled system. 1.6 Max Speed: 210000rpm for 2 Poles BLM, 70000rpm for 6 poles BLM, 35000rpm for 12 poles BLM. (BLM = BrushLess Motor) 1.7 Size: 55mm (L) * 25mm (W) * 12mm (H). 1.8 Weight: 31g.2 Features2.1 High performance microprocessor, best compatibility with all kinds of motors, highest driving efficiency.2.2 Optimized for multi-rotor aircraft. 2.3 Smooth, linear, quick and precise throttle response.2.4 Multiple protection features: Low-voltage cut-off protection / Over-heat protection / Throttle signal loss protection.2.5 The throttle signal is transfered through optical/electrical coupled system to avoid electromagnetic interference.2.6 The firmware of the ESC can be updated through the built-in USB adapter in the Professional LCD Program Box.2.7 User programmable. 2.8 Multiple program methods supported: transmitter stick, Digital LED Program Card, Professional LCD Program Box, PC software. Very easy to program the ESC at home or at the flying field.