This is the high performance GPS module with HMC5883L compass. It can be mounted away from sources of interference. It features active circuitry for the ceramic patch antenna, rechargeable backup Capacitors for warm starts. The GPS designed for Arduflyer/APM/Fixhawk/Pixhawk and include cable for Arduflyer/APM.Change the 1.25-5P plug shell to 6P to fit Fixhawk/Pixhawk Features:u-blox NEO-7M GPS module 10Hz update rate 25 x 25 x 4mm ceramic patch antenna LNA and SAW chip 3.3V LDO low noise regulator UART (TTL) port with EMI protection 3V Rechargeable Backup Capacitors Fix indicator LED Reverse polarity protection for input power RCTimer: http://www.rctimer.com/product-1333.html