2-4S 30A RC Brushless ESC Simonk Firmware Electric Speed Controller with 5V 3A BEC with 3.5mm Female Banana Bullet for 2 to 4s Lipo Battery, DIY Multicopter Quadcopter (30A, 6 pcs)

Military standard capacitor of extreme low resistance increases the ability of prevention of unwanted RF noise during flying. Extreme low resistance PCB is helpful for getting a super current endurance capability.
Microprocessor uses separate voltage regulator IC, with good anti-jamming capability.
NOTE: 1. ESC was soldered with 3.5mm Female banana connectors, effectively avoid welding problems; 2. have set up the Simonk Firmware program.
Brand: QWinOut
Working current: 30A/40A
(Optional on my shop)
Output:
30A Version: Continuous 25A, Burst 40A up to 10 Secs
40A Version: Continuous 40A, Burst 55A not down to 10 Secs
Input Voltage:2-4 cells lithium battery or 5-12 cells NiCd/NIMh battery
BEC:5V 3A
Max Speed:210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM.(BLM: BrushLess Motor)
Weight:about 25g
Compatible for:
DIY FPV KK MK MWC RC Quadcopter Hexacopter Multi-Rotor Aircraft;
210 360 450 Helicopter;
380 f450 f550 and other four-axis six-axis fixed-wing drone.
Features
1.Safety Arming Feature: Regardless the throttle stick position, the motor will not spin after battery connected.
2.Throttle Calibration: Throttle range can be configured to provide best throttle linearity, fully compatible with all market available transmitters.
3.Programmable Items:Brake Setting:brake enabled/brake disabled. Battery Type:Li-xx(Li-ion or LiPo)/Ni-xx(NiMh or NiCd). Low Voltage Protection Mode(Cutoff Mode):Gradually reduce the output power/Cutoff the output power. Low Voltage Cutoff Protection Threshold (Cutoff Threshold):low/medium/high. Start Mode: normal/soft/very soft. Timing:low/medium/high. Reset: reset all the programmable items to their default settings.
4.Full Protection Features: Low voltage cutoff protection/Over-heat protection/Throttle signal lost protection.
Suggestion:Do a throttle range adjustment before taking off as following steps:
1.Connect ESC/motor/receiver
2.Push the remote control throttle to maximum
3.Connect power
4.Hear the regular sound of D- D- D, unplug battery
5.Reconnect power and hear DD quickly sound
6.Pull the throttle to minimum
7.D sound once, calibration successful