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Mysterium “V1.5c” ANSI/ISO TKL Kit (White)


Build your very own custom TKL keyboard from scratch!

Easy to solder, uses only through-hole components.

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SKU: K-MYST-V1.5-WHT Category: Tags: , ,

Mysterium TKL ANSI/ISO Through-Hole Keyboard Kit

Originally designed by coseyfannitutti of and modified by 42. Keebs to support the ISO layout as well as ANSI.

Bryan, if you’re reading this, please get in touch! I tried e-mailing you a couple of times, I’d love to send you part of the proceeds from every sale.

This is revision 1.5c of the unified ANSI/ISO version which adds support for an optional rotary encoder in the top right key position (Pause/Break).

Modified QMK firmware – to flash your custom keymap, modify the file keyboards/42keebs/mysterium/keymaps/iso/keymap.c to your liking and flash using make 42keebs/42keebs/mysterium:iso:usbasp (COMING SOON).

Build your very own custom keyboard from scratch!

  • Tenkeyless (TKL) 80% layout
  • Supports both ISO and ANSI layouts
  • Supports optional rotary encoder instead of the top right switch (Pause/Break)
  • Easy to solder, uses only through-hole components (no SMD)
  • The only slightly tricky part to solder is the USB-C connector. If you feel a bit unsure, I can solder it for you for a small extra.
  • Optional FR4 switch plate available
  • Tinned finish, white solder mask

Documentation in the GitHub repository

Kit includes:

  • Main PCB
  • Bottom plate made from PCB material (FR4)
  • All electronic components
  • Controller flashed with USBaspLoader bootloader
  • EC11 rotary encoder
  • Brass standoffs and screws
  • Acrylic cover(s):
    • Plateless version: top and arrow cluster covers provided
    • Version with a plate: only top cover provided (the plate currently doesn’t support the arrow cluster one)

Optional add-ons available:

  • FR4 switch plate
  • Aluminium encoder knob
  • Anodised aluminium cone feet

Kit does not include:

  • Switches, stabilizers, keycaps
Weight 0.49 kg


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