Pixhawk 2.4.8 PX4 32bit ARM Flight Controller Integrate PX4FMU+PX4IO with TF Card and M8N GPS for FPV Quadcopter The board integrates with PX4FMU+PX4IO Pixhawk is with new 32 bit chip and sensor technology 32 bit 2M flash memory STM32F427 Cortex M4, with hardware floating point processing unit Main frequency: 256K, 168MHZ RAM with Mini M8N GPS , TF Card , GPS Holder