1、Mosfets and skylight design, better heat dissipation and over current. 2、Capacitance optimization: the plug-in electrolytic capacitor is changed to the SMT electrolytic capacitor, which takes up less space. 3、More 1210 ceramic capacitors with good filtering and voltage stabilization effect. 4、Reserve VESC OR VESC BASED ESC special remote control receiver welding point.Simple, few lines. 5、Careful detail design, quality assurance. Features: 1. Mosfets and skylight design, better heat dissipation and over current. 2. Capacitance optimization: the plug-in electrolytic capacitor is changed to the SMT electrolytic capacitor, which takes up less space. 3. More 1210 ceramic capacitors with good filtering and voltage stabilization effect. 4. Reserve VESC OR VESC BASED ESC special remote control receiver welding point.Simple, few lines. 5. Careful detail design, quality assurance. 6. Upgrade the power cord to line 8 and motor cord to line 12. 7. High-grade anodized cooling fin. 8. Fixed with 100% capacitor dispensing glue to prevent shock. 9. Add heat conducting pad and screw shockproof pad. Specifications: Condition: 100% Brand New Material: PCB Type: RC Parts & Accs Hardware: V 6.6 Firmware: VESC_default_no_hw_limits Voltage: 8V - 60V (Safe for 3S to 12S LiPo) for the dual ESC Voltage spikes may not exceed 60V Current: Continuous 100A single, total 200A, Instantaneous current 400A per single, total 800A for system instantaneous current. 5V 1.5A output for external electronics for single 3.3V 1A output for external electronics for single Modes: DC, BLDC, FOC (sinusoidal) Supported sensors: ABI, HALL, AS5047 Other Features: Regenerative braking Traction control (single and dual settings) Sensor or sensorless operation Configurable RPM, Current, Voltage and Power Limits Input source: PPM, simulation, NRF Nyko Kama Nunchuck Communication ports: USB, CAN, UART, NRF, Bluetooth Throttle curves and ramps for all input sources Separate acceleration and brake throttle curves Seamless four-quadrant operation Motor speed, ampere hour, watt-hour count Real-time data analysis and readout through communication ports Can adjust different protection settings Package List: 1 * ESC 1 * USB Cable 2 * Connecting Cable 1 * Manual