Description: Usage: 4 in1 ESC was designed to give your motors smooth power with great stability and durability. Rational layout design with extended solder pads ensures easy builds, fixes or adjustments. High-Performance Processor: Adopts ARM 32-bit Cortex MCU, frequency up to 48 MHZ. BLHeli_32 firmware, which is designed for functionality and performance, bring you a smooth flying experience. Material: Aluminum heat sink effectively slow down the temperature rise. The silicone twisted-pair of the throttle signal cable effectively reduces the crosstalk caused by signal transmission. Shock Absorb Design: Vibration and shocks can be perfectly avoided by adding 4 dampers, more conducive to the normal operation of the whole flight system. Features: Supports regular 1-2ms pulse width input, as well as Oneshot125 (125-250us), Oneshot42 (41.7-83.3us) and Multshot (5- 25us). The input signal is automatically detected by the ESC upon power up. Dshot signal is supported at any rate up to at least Dshot1200. Application: Supports higher KV motor and more power load, more suitable for violent flight of racing drone. Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling. Attention: 1. ESC will automatically detect the input throttle signals every time as soon as it powered on, and then execute the corresponding signal-receiving mode. 2. User need to calibrate the throttle range when starting to use a new ESC or another transmitter. When the input signal is Dshot, throttle calibration is disabled. 3. When some abnormality occurs in ESC driving the motor or need the motor to reach a higher RPM, user can try to change the timing. 4. It is suggested that keep the ground wire in the original signal wire connecting well. 5. Please use a PDB or Flight Control with currentmeter if OSD is required to display the current. Specification: Material: Aluminum Alloy Color:Black, Red, Purple Size(LxW): About 45x41.5mm/1.77x1.63inch Types/Continuous current: 45A, 60A Mounting hole: About 30.5x30.5mm Battery: 3-6S(Not included) Package includes: 1pc x Electric Speed Controller Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.