My son and I have tried several ELRS dongles; this is the best one: 1) has Raspberry Pi chip on the board (open source design kept the price down) 2) clean design, enclosed case, including the square antenna, and with an on/off switch 3) both USB A and C 4) good performance (no lag) 4) if you want to use a different receiver, the board has soldering pads, and it comes with another antenna that will stick inside the case, and the usual tiny philps screwdriver. Arrived sooner than expected.

My son and I have tried several ELRS dongles; this is the best one: 1) has Raspberry Pi chip on the board (open source design kept the price down) 2) clean design, enclosed case, including the square antenna, and with an on/off switch 3) both USB A and C 4) good performance (no lag) 4) if you want to use a different receiver, the board has soldering pads, and it comes with another antenna that will stick inside the case, and the usual tiny philps screwdriver. Arrived sooner than expected.

My son and I have tried several ELRS dongles; this is the best one: 1) has Raspberry Pi chip on the board (open source design kept the price down) 2) clean design, enclosed case, including the square antenna, and with an on/off switch 3) both USB A and C 4) good performance (no lag) 4) if you want to use a different receiver, the board has soldering pads, and it comes with another antenna that will stick inside the case, and the usual tiny philps screwdriver. Arrived sooner than expected.