Adopting CPU AT32F403ARCT7 with the structure of ARM - allows CPU clock speed.240MHz and the max PWM switching frequency 45KHz, which improves the motor RPM.Programmable via ESC Tool to be compatible with multi-types of motor, different battery,voltages and many control ways.Programmable via VX4 remote(Firmware Version:VX4_V1.2)Supporting FOC with low working noise and smooth starting.Supporting Real-time data and fault alerts.Supporting adaptive variable PWM frequency control.Supporting sensor mode(HALL) and sensorless mode(IPDS, HFPI). Supporting control types: Current, Duty CycleProtection functions: low and high voltage protection, over-current protection, temperature.abnormally protection, mosfets over-temperature and over current protection, battery over.discharge protecting, motor over-temperature protection.Specs:Firmware: V1.0, supporting update via ESC ToolVoltage: 14-84V(safe for 4-20S)Continuous current: 50V/60A; 75V/50A; 84V/40A (Values depend on the mounting, ambienttemperature and air/water circulation around the device ); Current: 250ACommunication Ports: USB, CAN, UARTInput Signal Support: PPM, UART(compatible with remote VX4 only), ADCBEC: 5V@1AMultiple Speed Gear levels: Low, Medium, High, ReverseMotor/power wire size: 12 AWGProgrammable: YesRegenerative Capacity: YesSize: L110.5*W55*H30mm(Including Alu. Case)Material: ABS+metalcolour: blackPackage Contents:1 x ESC motor speed regulatorOnly 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.