Exactly as expected
"Did exactly as it was supposed to."

This is a programming cable for the FrSky R-XSR receiver. This is a great tool if you have lost your cable, or if you purchased a BNF quad that did not come with this. Plugging this into your radio and receiver will allow you to change the firmware on your R-CSR receiver.
Check out the rest of our RC transmitter accesories.