Holybro Tekko32 45A 4in1 ESC has got some improvements on its performance： 1) Enhanced BEC, withstand voltage up to 80V. 2)The first blheli32 ESC in the market with default PWM output 96K giving you smoother and quieter experience. 3) Amperage meter scale ratio has been adjusted to 185-195. 4) The mounting hole has been changed into M4 with anti-vibration silicone grommet Insert. 5)The PCB design uses a design in which the drive circuit and the control circuit are separated. This design broadens the overcurrent capability of the drive circuit, and at the same time reduces the electrical interference to the control circuit.