This new backplate is for the "ORX Orange RX - Transmitter Module". This will allow you to move the antenna to a better position on the back of your RC transmitter. All you have to do is screw the old backplate off the module, unscrew your antenna plug and screw it in the new backplate. The photos is of an early version, the current version have some small improvements. Happy flying. PS: Feel free to leave some feedback in the comments.