Amazon.com: DIYmalls Beitian BN-220 GPS Receiver Module with 4M Flash + GPS Passive Antenna + CP2102 USB to TTL for Arduino Raspberry Pi Flight Control : Electronics
Mini-Review Review (ip) of Dual BN-220 GPS GLONASS Antenna Module TTL Level RC Drone Airplane - RC Groups
BN-220 Dual GPS Glonass Module Navigation TTL Level 9600bps + GPS Passive Antenna for Arduino Raspberry Pi Pixhawk F3 CC3D Betaflight F4 Flight Control - Newegg.com