By installing this module in your Devo (with Deviation firmware installed) you can have 3 additional radios beyond the standard Devo CYRF module (which is factory-installed in all Walkera Devo transmitters) : the A7105, CC2500, and NRF24L01 modules are all contained in this single package and they will all use a common antenna connection, separate from the CYRF antenna. (Click on image for a close-up view. And click on the close-up view for a detailed view.)