This is a housing that slots in between the standoffs on the GEPRC Mark 2 Frame 5 inch on the back end of the frame. I have fitted a TBS Crossfire module and Menace RC Cob LED driver on the inside of the holder. They are secured together with a 3mm cable tie from the top to the bottom. All wires cane be threaded through the inside to the FC. The VTX antenna can also be mounted on the back.
Sunlu PLA Plus PLA
I used PLA plus had a couple of crashes and it has held up really well.