MK65MX - 65% Mechanical Keyboard PCB
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📄 Product Description
MK65MX — the versatile 65% PCB for ISO and ANSI builds
The MK65MX is a versatile 65% wired hot-swap PCB designed as a replacement or upgrade option for a broad range of common 65% O-ring keyboards. Instead of being manufacturer-specific, the MK65MX relies on standard hole pattern and Unified C5 daughterboard compatibility. Fully QMK, VIA, and VIAL compatible, with per-key RGB and all the important layout options. Designed by Quark.
Layout flexibility without compromise
The MK65MX supports both ISO and ANSI layouts on a single PCB — with extensive multi-layout options for the main areas:
- ISO + ANSI layout support — perfect for DE-ISO, UK-ISO, or US-ANSI
- Split left shift + big ANSI left shift
- Split backspace + regular backspace
- Stepped capslock
- 6.25U and 7U spacebar — compatible with most spacebar sizes
Case compatibility
The MK65MX has been tested with a range of common 65% cases and delivers reliable compatibility — provided the case offers O-ring mounting, a standard 65% hole pattern, and a Unified C5 daughterboard connection.
✅ Tested compatible:
- Kraze
- Kafka
- Mode Sixtyfive R1 / 2021 (without silicone insert)
- Mode Sixtyfive R2 / 2025
- Mode Encore
- AIS65
- Block67 R2
- Keycult No1/65
- Keycult No2/65
- IRON165
- Haven65
- and most likely many more!
⚠️ Most likely compatible (untested):
- Krush65
❌ Tested incompatible:
- KBDfans Dusk67
- Mode Envoy
- Orbit65
- Luminkey65
- Dune65
If your case isn't listed here, check the hole pattern and daughterboard connection — many 65% O-ring builds use the same quasi-standard.
Per-key RGB and modern connector
The PCB features per-key RGB LEDs — each key individually configurable, from understated setups to reactive effects and animations. For the daughterboard connection, the MK65MX uses a modern PicoMolex EZMate connector — more precise, smaller, and more reliable than classic JST connectors.
QMK with VIA and VIAL — full customizability
The MK65MX runs on the proven QMK firmware (firmware source code will be released) and is both VIA and VIAL compatible. This lets you remap every single key, record macros, set up layers, and tailor the board exactly to your workflow — directly in the browser, without driver installation.
🛠 Specifications
⭐ Reviews
MK65MX — the versatile 65% PCB for ISO and ANSI builds
The MK65MX is a versatile 65% wired hot-swap PCB designed as a replacement or upgrade option for a broad range of common 65% O-ring keyboards. Instead of being manufacturer-specific, the MK65MX relies on standard hole pattern and Unified C5 daughterboard compatibility. Fully QMK, VIA, and VIAL compatible, with per-key RGB and all the important layout options. Designed by Quark.
Layout flexibility without compromise
The MK65MX supports both ISO and ANSI layouts on a single PCB — with extensive multi-layout options for the main areas:
- ISO + ANSI layout support — perfect for DE-ISO, UK-ISO, or US-ANSI
- Split left shift + big ANSI left shift
- Split backspace + regular backspace
- Stepped capslock
- 6.25U and 7U spacebar — compatible with most spacebar sizes
Case compatibility
The MK65MX has been tested with a range of common 65% cases and delivers reliable compatibility — provided the case offers O-ring mounting, a standard 65% hole pattern, and a Unified C5 daughterboard connection.
✅ Tested compatible:
- Kraze
- Kafka
- Mode Sixtyfive R1 / 2021 (without silicone insert)
- Mode Sixtyfive R2 / 2025
- Mode Encore
- AIS65
- Block67 R2
- Keycult No1/65
- Keycult No2/65
- IRON165
- Haven65
- and most likely many more!
⚠️ Most likely compatible (untested):
- Krush65
❌ Tested incompatible:
- KBDfans Dusk67
- Mode Envoy
- Orbit65
- Luminkey65
- Dune65
If your case isn't listed here, check the hole pattern and daughterboard connection — many 65% O-ring builds use the same quasi-standard.
Per-key RGB and modern connector
The PCB features per-key RGB LEDs — each key individually configurable, from understated setups to reactive effects and animations. For the daughterboard connection, the MK65MX uses a modern PicoMolex EZMate connector — more precise, smaller, and more reliable than classic JST connectors.
QMK with VIA and VIAL — full customizability
The MK65MX runs on the proven QMK firmware (firmware source code will be released) and is both VIA and VIAL compatible. This lets you remap every single key, record macros, set up layers, and tailor the board exactly to your workflow — directly in the browser, without driver installation.
