The full kit...everything you need to get flying at a discounted price! Includes: Pixhawk 2.1 with standard carrier board, Here2 GNSS module, 2x RFD900x telemetry radio, 2x 900MHz 3dbi dipole antennas (RPSMA), 1x straight 900MHz 2dbi monopole antenna (RPSMA), 1x right angle 900MHz 2dbi monopole antenna (RPSMA), 1x RFD to Pixhawk 2.1 cable, 1x USB FTDI cable. The RFD900x telemetry modem supports AES encryption and PPM passthrough.