ClickShare Conferencing Button and Tray Bundle The classy ClickShare Tray holds the Buttons when they are not in use. Up to 4 buttons fit on the tray. For the CX-20, CX-30, CX-50, C-5 and C-10 models. Consists of: 1 x ClickShare Tray (ref. no. R9861500T01) 2 x ClickShare USB-C Button (ref. no. R9861600D01C)