powerday Pixhawk PX4 32Bit ARM Flight Controller 4G SD Card for RC Multicopter FPV Quadcopter + 1powerday Strap - Advanced 32 bit CortexM4 ARM high performance processor, can run RTOS NuttX real time operating system; - 14* PWM/ actuator output; - Bus interface (UART, I2C, SPI, CAN); Package includes: - 1 x V2.4.8 Pixhawk FC(- 1 x Safety switch - 1 x Buzzer - 1 x 6pin to 6pin line - 1 x 4Pin to 4Pin line - 1 x 3pin DuPont line - 1 x 4G SD card)