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Sub-Etha Pad Large CNC Encoder Macropad


8-key macropad with a large metal CNC encoder knob

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Sub-Etha Pad Large CNC Encoder Macropad

First original 42. Keebs project 🙂 Inspired by EncoderPad RP2040, but created from scratch by piit79 (GitHub repository).


  • 7-8 keys with hotswap sockets
  • Support for a vertical 2u key (numpad Enter) at the bottom right
  • Large metal CNC rotary knob with 100 steps per rotation
  • RGB underglow + 2 upward facing RGB LED – one near the 42. Keebs logo and one underneath the top right key (firmware support pending)
  • Support for a 0.91″ 128×32 OLED screen
  • On-board power switch and battery header
  • Uses a Pro Micro-compatible controller
  • TRRS jack for future connection to a compatible 42. Keebs kit (Mysterium 1.5e coming first) to be able to use only 1 USB cable (similar to split keyboards)
  • Acrylic sandwich case: 5 mm switch plate, 5 mm middle plate, 3 mm bottom plate
  • Available in black and white

Kit contents:

  • Main PCB (black or white)
  • Metal CNC encoder (black or silver)
  • 8x hotswap sockets
  • 1x reset switch
  • 10x SK6812 MINI-E RGB LED modules
  • 3x acrylic plates (smoky grey or clear satin)
  • 4x adhesive silicone feet

Other required parts not included in the kit:

  • 1x Pro Micro compatible controller module
  • 8x Cherry MX-compatible switches
  • 8x Cherry MX-compatible keycaps
Weight 0.3 kg


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