https://www.sparkfun.com/sparkfun-allband-gnss-rtk-breakout-zed-x20p-qwiic.html
SparkFun Allband GNSS RTK Breakout - ZED-X20P (Qwiic) - SparkFun Electronics
The SparkFun Allband GNSS RTK Breakout - ZED-X20P (Qwiic) features the latest GNSS engine from u-blox, the X20, which is a successor to their popular F9...
gnss rtk breakoutsparkfunzed
https://www.sparkfun.com/sparkfun-gps-rtk-sma-breakout-zed-f9p-qwiic.html
SparkFun GPS-RTK-SMA Breakout - ZED-F9P (Qwiic) | RTK GNSS - SparkFun Electronics
Get millimeter-level, 3D RTK accuracy with the SparkFun GPS-RTK-SMA Breakout, featuring u-blox ZED-F9P module and includes Qwiic and SMA connectors.
sparkfun gps rtkbreakout zed