DD-40 Keyboard




The DD-40 by dededecline is a 12.75u wide gasket mounted 40% keyboard with an RGB LED strip sandwiched between the macro-column and main alpha cluster. Both WKL and HHKB top cases will be available, and the seamed design allows for a two-tone case via available extra tops.

Addons and Extras


Extra plates are available in Carbon Fiber, FR4, Aluminum, and POM. They come in WKL and HHKB layouts.


Extra QMK/VIAL compatible solder PCB.

Extra Tops

Extra top cases are available in the same colors as the keyboard kit, and are available in WKL and HHKB.

Stabilizer Wires

The DD-40 uses some uncommon stabilizer sizes- 3U and 6U. We have wires available that can be used in popular stabilizer housings to complete your build!

Extra Gaskets and feet

Extra gaskets are available for those who prefer putting gaskets on the plate rather the case. Custom Feet extras are also being sold.

PCB and Plate Layout

WKL Plate Support

PCB Support

HHKB Plate Support

Colors Available





Quality Disclaimer

A Stock units should not have any external scratches or aggregious marks seen when built. Any internal flaws and marks (including hook marks) that are not seen when built do not constitute a B Stock unit.