Controller Works
mini42 Low Profile Ergonomic Keyboard Proto
mini42 Low Profile Ergonomic Keyboard Proto
Regular price
CHF 278.00
Regular price
CHF 302.00
Sale price
CHF 278.00
Unit price
per
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NO SOLDERING REQUIRED! The mini42 is a 42 key low profile ergonomic split keyboard designed for Kailh Chocolate switches. Key features include:
- Pre-built, fully integrated design: RP2040 processor, OLED display, and connectors are integrated with the main board for a slim 8mm thickness for the main case body.
- CNC milled silver anodized aluminum case
- Per-key LEDs and LED back lighting
- Shine-through filigree style back plate finished in real gold
- "Chocolate" spacing: switches are spaced 18mm (width) x 17mm (height) apart
- USB-C and TRRS connectors have over-current and ESD protection
- Hot-swap sockets
- Pre-loaded with official QMK firmware with Via support
- Premium construction: RoHS components, lead-free solder paste, and gold surface finishes used on all PCBs
- Please note that the prototype units have one serial line between the halves. The default firmware uses this line in half duplex mode for bidirectional communication between the halves.
Included:
- Left and right keyboard halves with integrated micro-controllers, OLED displays, and connectors
- TRRS cable
Required for Operation:
- 42 Kailh "Chocolate" switches
- 40 Kailh "Chocolate" 1u keycaps
- 2 Kailh "Chocolate" 1.5u keycaps
- 1 USB-C cable
Product Comparison
Feature | mini42 Low Profile | Corne Chocolate |
Soldering | Pre-built | DIY |
Connection |
USB-C, TRRS |
Depends on micro-controller board, TRRS |
Processor | RP2040 | ATMega32U4 |
Program Memory | 16 MB | 1 KB |
Clock | 133 MHz | 16 MHz |
Firmware | QMK |
QMK |
Keymap | Via |
Via |
Spacing | Chocolate | MX |
Lighting | Per-key and back-light | Per-key and back-light optional |
Display | OLED integrated | OLED module |
Backplate | Gold shine-through filigree PCB | PCB |
Switches | Kailh Chocolate only | |
Keycaps | Chocolate spacing only | MX spacing |
Circuit Protection | ESD and over-current on USB-C and TRRS | N/A |
*** Please note that there may be light tooling marks in the interior of the case. This is expected.
Materials
Materials
Shipping & Returns
Shipping & Returns
International shipping can be complex. Please ask on chat for custom shipping quotes for international orders. Key cap sets can be shipped in a small bag or in the original packaging for an additional charge.
Dimensions
Dimensions
Care Instructions
Care Instructions


