1、BB2, 48MHZ Chip, Blheli_S Firmware, STM32F4 CPU, ICM-MPU6000 accelerometers, gyroscopes SPI and MicroUSB interface 2、Built in 5V / 1A BEC, current sensor and OSD 3、Supporting 2-4S lipo battery 4、Supporting Oneshot42, Oneshot125, Multishot and 16.5 Dshot600 5、All codes use damped light mode, which will contribute to regenerative braking, fast motor retardation and active freewheeling Features: BB2, 48MHZ Chip, Blheli_S Firmware, STM32F4 CPU, ICM-MPU6000 accelerometer, gyroscopes SPI and USB interface. Super small size and light weight design is easy to install and use. Built in 5V / 1A BEC, current sensor and OSD. Supporting 2-4S lipo battery. Supporting Oneshot42, Oneshot125, Multishot and 16.5 Dshot600. All codes use damped light mode, which will contribute to regenerative braking, fast motor retardation and active freewheeling. Specifications: Max Burst Current: 35A (10s) Constant Current: 30A SBEC: 3A 5V Input: 2-4S LIPO Output: 5V 1A BEC: 5V @1A Sensor: STM32F4 CPU Programming: Yes Color: As Pictures Size: 36 * 36mm / 1.4 * 1.4inch Weight: 30g Type: RC Accessory Wiring Method: Package Includes: 1 x Flight Controller Board 2 x 6P Cables 1 x Set of Screws and Nuts Note: The 4 installing holes were linked to the positive of power(battery +), please use the plastic screws or any others non-conductive screws to install to avoid damage the FC/ESC/Receivers.