UF8
6 RU; part 726490XR available from retailers.
624902X8 ORIGIN center section group fader tray kit available from retailers.
UC1
6 RU; part 726580XR available from retailers. Note UC1 is 11.8" (300mm) wide.
UF1
6 RU; 726570XR available from retailers. Note UF1 is 11.8" (300mm) wide.
BiG SiX
10 RU; part 729752XR available from retailers.
SiX
7 RU; part 729750XR available from retailers.
X-Desk and X-Panda
7 RU; a single ear is part 539712051B, special order from retailers. The screw type is M4 x 6mm.