Special core program for multi-rotor controllers meets various functional requirements against multi-rotors. Specially optimized software for excellent compatibility with disc-type motors. The twisted-pair design of the throttle signal cable effectively reduces the crosstalk produced in signal transmission and makes flight more stable. Specifications: Model: 40A Continuous Current: 40A Burst Current ( Greater than 10s): 55A BEC Mode: Linear BEC output: 5V@3A (linear regulator mode - linear mode) BEC Output Capability: 4 Servos (2-4S Lipo) Battery Cell: 2-4S (Lipo) Maximum speed: 210,000 rpm/min for 2-pole motor, 7000 rpm/min for 6-pole motor ,35,000 rpm/min for 12-pole motor Due to different batches, the appearance, color, and printed words of the product may vary, which does not affect its use. Material: plastic+metal colour: black Package Contents: 1 x Brushless ESC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.