It came!!!! I'll document the installation. For those of you who don't know already, the Turnigy 9x transmitter can be upgraded with free open source firmware. The most common I would say is the ER9x version. Someone correct me if I'm wrong but the ER9x firmware vastly expands the program functions, increases model memory to 16, correctly displays lipo voltage and I think makes it a 12 ch. radio. This is the Smartieparts 9x Add-on Board with built-in Programmer and EL Backlight. This serves two purposes, it combines a backlight and a USB port so the TX can be connected to a PC for firmware updating. It is possible to mod your 9x so the firmware to be updated but this version is plug and play for the most part.