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Mysterium 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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  • Anodised Aluminium Encoder Knobs


    Knobs for use on the EC11 rotary encoder


    Aluminium Cone Feet


    Anodised aluminium cone feet (pair)



  • Soldering

    If you feel a bit uncomfortable soldering the USB-C socket, we're happy to do it for you.

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SKU: K-MYSTERIUM-V1.5-WHT Categories: , 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 1.5d – modifications highlighted in bold below.

Build your very own custom keyboard from scratch!

  • Tenkeyless (TKL) 80% layout
  • Supports both ISO and ANSI layouts
  • Supports optional rotary encoder in the top right position (Pause/Break)
  • Supports split backspace
  • Supports optional 0.91″ 128×32 pixel OLED screen
  • 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, select the USB-C soldering service above
  • FR4 switch plate now included
  • Lead-free tinned finish, white solder mask

Documentation in the GitHub repository

Modified QMK firmware – to flash your custom keymap, modify the keymap file to your liking and flash from the command line:

Kit includes:

  • Main PCB
  • FR4 switch plate
  • FR4 bottom plate
  • All electronic components
  • Controller flashed with USBaspLoader bootloader
  • EC11 rotary encoder
  • Brass standoffs and screws
  • Component acrylic cover (arrow cluster acrylic cover not compatible with plate)

Optional add-ons available:

  • Aluminium encoder knob
  • Anodised aluminium cone feet

Kit does not include:

  • Switches, stabilizers, keycaps
Weight 0.49 kg


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