This is for SPEKTRUM DX9, DX18 and FUTABA 7C transmitters


For SPEKTRUM DX9, it is well-matched with "TX-Tray (S)"

For SPEKTRUM DX18, it is required to use "TX-Tray (L)" (** DX18 cannot be compatible with TX-Tray (S)

For FUTABA 7C , it is well-matched with "TX-Tray (S)"