powerday 30A ESC Brushless Speed Controller BEC 2A for Quadcopter F450 X525(Pack of 2)

-for sale is 30A SimonK firmware Brushless ESC. -Soldered with 3pcs 3.5mm gold female plug, very convenient to connect motor. -Highest efficiency 100% N-FET design. -Highest accuracy with Crystal Oscillator (Temperature wont affect the PWM -operating range like other cheap ESCs). -No low voltage cutoff, because any cutoff in a multirotor = crash. -No over temp cutoff, because any cutoff in a multirotor = crash. -Super high refresh rate, no buffering of the input signal, resulting in more than 490Hz response rate. -16KHz motor frequency, giving fastest response of the motor, and quietest operation as well (no 8KHz squeal). -Super simple, foolproof operation! Nothing to program other than the throttle range. -ESC Specs: -Cont. current: 30A -Max. current: 35A -Input Voltage: 2-3S lipo / 4-11 cell Ni-MH/Ni-Cd -BEC: 5V 2A (Linear mode) -Size: 55x26x8mm (length 145mm including power cable) -Weight: ~22g