Carpe Keyboards JD40 PCB Mk. II

Fully Programmable PCB
40-key Layout
JD40 PCB Mk. II
The JD40 PCB is a fully programmable PCB designed by jdcarpe of Carpe Keyboards.
JD40 Programming Guide : https://geekhack.org/index.php?topic=83626.0
Fully supported on https://deskthority.net/wiki/Easy_AVR_USB_Keyboard_Firmware