It is a 100A brushless ESC. The design is easy to maintain and has low interference The PCB adopts high-end composite material, which has stronger overcurrent capability and good heat dissipation.MOS adopts imported high current resistance mos, low energy consumption, long life and strong load capacity Using industrial grade LDO, high temperature resistance. High-quality capacitors, strong filtering performance Intelligent control: The controller has a built-in low-noise button, which can be controlled remotely by one button Maximum power: The OSD allows you to control your drone with maximum speed and accuracy, while providing a smoother flight Item Type: BLS 100A 30.5x30.5 4-in-1 ESC MCU: EFM8BB21F16G MOSFET: High performance MOSFET Power Input: 3-6S LiPo Continuous Current: 100 * 4 Burst Current: 120A(10seconds) ESC Telemetry: NO Current Sensor Scale:200 ESC Protocol: DSHOT300/600 Firmware: Q_H_40_24_v0.19.2 Mounting: 30.5 x 30.5mm( 4mm hole diameter) Colour:black Material:PCB Package Contents: 1 * ESC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.