The KeyWarrior28 evaluation board (KW28Eval) is a 76 x 103 mm PCB for building a 4x5 key matrix based on the KeyWarrior28. All mechanical keys of type MX (5-pin) can be assembled as keys, all electronic components are already assembled. In addition there are outputs for the status LEDs (NUM, LOCK, SCROLL) and 3 additional key inputs.

The key matrix, macros and all other setting options can be changed via software. For this purpose we offer a software for Windows for download free of charge.

Additionally we provide 3D printing data for housings and keycaps via our Github repository free of charge.
All data in the repository are available for free use.



Typ Matrix Keys FN-Keys USB Codes / Key Macros Size Status
KeyWarrior28 Eval 4x5 20 + 3 2 2 19 / 31 Codes 76 x 103 mm Active


Technical Details

  • USB Standard Keyboard, Full Speed
  • 4x5 matrix suitable for mechanical keys of the MX series (5 pin) or compatible
  • Additional 3 separate key inputs outside the keyboard matrix
  • 3 LED outputs for status LEDs (NUM, LOCK, SCROLL)
  • 3 keyboard levels (FN)
  • Key assignment and macros customizable via software
  • Dimensions of the board: 76 x 103 mm

kw28eval pcb web kw28eval keys web
KeyWarrior28Eval PCB Demobuild



Part number 1 - 4 5 - 9 10 - 24 Education Status
KW28EVAL 16,80 € 15,46 € 14,22 € Call Active

Pricing excludes tax and shipping/handling.
For pricing on larger quantities, please contact: This email address is being protected from spambots. You need JavaScript enabled to view it..


Datasheets and Downloads

  Typ Download Betriebssystem
pdf Datasheet KeyWarrior28  
pdf Datasheet KeyWarrior28Eval Instructions  
pdf Datasheet Scancodes KeyWarrior II  
zip Software KeyWarrior28 Editor Windows