ESC 40A Brushless UBEC Electric 2-3S Speed Controller 3A Skywalker with T Plug and 3.5mm Bullet Plugs for RC Helicopter¡

? Pre-soldered with T plug and 3.5mm bullet plugs for easy connection.  ? Safety Arming Feature: Regardless the throttle stick position, the motor will not spin after battery connected.  ? Throttle Calibration: Throttle range can be configured to provide best throttle linearity, fully compatible with all market available transmitters.  ? Selectable program setting  ? Full Protection. ? 100% brand new. Features:  Low voltage cutoff protection / Over-heat protection / Throttle signal lost protection.  Specification:  1. Continuous current: 40A  2. Burst Current (>10s): 55A  3. BEC output: 5V 3A 4. BEC mode: Linear  5. BEC Output Capability: 5 Servos (2S Lipo) / 4 Servos (3S Lipo)  6. Battery Cell: 2-3S (Lipo) / 5-9 cells (NiMH)  7. Maximum speed: 210000 RPM (2 poles motor), 70000 RPM (6 poles motor), 35000 RPM (12 poles motor).  8. Usage: Apply for 400/450 helicopter 3D, and 32 level fixed wing sports  9. Weight: 39g  10. Dimension: 68mm x 25mm x 8mm  Package includes: 1pack ESC 40A