Hobbypower 30A SimonK Brushless Speed Controller ESC (with BEC)

This is THE BEST 30A ESC for multirotor
This hardware, with the SimonK firmware, gives you the perfect solution for multirotor use:
Highest efficiency
Highest accuracy with Crystal Oscillator (Temperature won’t affect the PWM operating range like other cheap ESC’s).
No low voltage cutoff, because of any cutoff in a multirotor = crash.
No over temp cutoff, because of 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 the 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 Specifications
Cont. current:30A
Max. current: 35A

Brand Name: Mxfasn
Input Voltage: 2-4s lipo /4-12 cell Ni-MH/Ni-Cd
BEC: 5V 2A(Linear mode)
length 145mm including power cable
Size: 55x26x8mm/2.2×1.02×0.31Inch
Weight:91g

Material: Metal+Plastic
Color: Black
Package included:
1 x 30A RC Cars Brushless ESC