China Beitian, Glonass GPS Module, Small Size, 3.6V-5.0V, Ttl Level, G-Mouse, 9600BPS, Nmea 0183 Gnss Module, Built in Flash, Bn-220 - China GPS Module, Nmea 0183 GPS Module
Beitian BN220 BN-880 3.0V-5.0V TTL level GNSS module GPS GLONASS Dual GPS module antenna built in FLASH,BN-220 BN880 - buy at the price of $8.99 in aliexpress.com | imall.com
Beitian GPS BN-220 Dual Glonass - Iha Race
GPS Units Compared - BN-220 vs BN-880 vs BN-880Q for iNav, Ardupilot or Betaflight - YouTube