Description:High quality brushless BEC replacement parts output ability of continues current of 40APremium material made, stable and reliableDurable, Speed Controller, 40A, UniversalPerfect speed controller for RC/FPV/Quadcopter/RC Airplanes and othersSpecification:Color: blackMaterial: Metal+PlasticSize: 6.5 x 2.6cm / 2.56 x 1.02inchType: 40A Brushless Without BEC (long wire)Output Continuous Current: 40AOutput Short Time Current: 55A (No Less than 10 Seconds) Input: 2-4S BEC Output: 5V 3A (Stable Linear Mode)Maximum Speed: 2-pole Motor 210000rpm, 6-role Motor 70000rpm, 12-pole Motor 35000rpmPackage Contents:1x 40A Brushless ESCOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.