Designed for use with JR style module radios. Tested to fit on both the Taranis X9D and JR 11x Zero radios. May also work on other JR module style radios. This is designed to use the clip from this: http://www.thingiverse.com/thing:101766. It may not be needed as mine worked well with just a friction fit. The scad file has options for both Dragonlink V1, V2, EZUHF and a fourth option for user entered dimensions.