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Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard(US ANSI Layout)

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| Keychron K3 Max SE | Nuphy Air75 V3 | Chilkey ND75 LP |
83 Overall/ Value 82.7Build Quality 74.0Customizability 87.1Performance 80.1Productivity 88.8Portability 80.0![]() | 95 Overall/ Value 94.9Build Quality 88.1Customizability 99.7Performance 81.8Productivity 97.2Portability 81.5![]() | 79 Overall/ Value 79.1Build Quality 74.0Customizability 75.0Performance 82.0Productivity 86.5Portability 81.8![]() |
5.0 stars (2 reviews) | 0.0 stars (0 reviews) | 0.0 stars (0 reviews) |
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Name Keychron K3 Max SE | Name Nuphy Air75 V3 | Name Chilkey ND75 LP |
Release year 2026 | Release year 2024 | Release year 2024 |
Switch Options Linear, Tactile, Clicky | Switch Options Tactile, Linear, Clicky, Low-profile 3.0, Mechanical | Switch Options - |
Profile Low Profile | Profile Low Profile | Profile Low Profile |
Hot Swappable | Hot Swappable | Hot Swappable |
Layout Size 75% | Layout Size 75% | Layout Size 75% |
Layout Standard ANSI | Layout Standard ANSI, ISO-FR, ISO, ISO-DE, ISO-UK, JIS | Layout Standard ANSI |
Layout Ergonomics Normal | Layout Ergonomics Normal | Layout Ergonomics Normal |
Knob Support | Knob Support | Knob Support |
Display Support | Display Support | Display Support |
Mac/Win Support | Mac/Win Support | Mac/Win Support |
Multi-Media Keys | Multi-Media Keys | Multi-Media Keys |
USB-C | USB-C | USB-C |
USB passthrough | USB passthrough | USB passthrough |
Connection Bluetooth, 2.4 GHz, Wired, Wireless | Connection Bluetooth, 2.4 GHz, Wired, Wireless | Connection Bluetooth, 2.4 GHz, Wired, Wireless |
Polling Rate 1000 Hz | Polling Rate 1000 Hz | Polling Rate 1000 Hz |
Battery capacity 1550 mAh | Battery capacity 4000 mAh | Battery capacity 3600 mAh |
Hall Effect Support | Hall Effect Support | Hall Effect Support |
QMK Support | QMK Support | QMK Support |
VIA Support | VIA Support | VIA Support |
VIAL Support | VIAL Support | VIAL Support |
N-Key Rollover | N-Key Rollover | N-Key Rollover |
Rapid Trigger | Rapid Trigger | Rapid Trigger |
Mount Style - | Mount Style Gasket Mount | Mount Style Plate Mount |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight Rgb, White, North-face | Backlight Rgb, North-face, South-face | Backlight Rgb, South-face |
Case Colors | Case Colors | Case Colors |
Case Material ABS, Wood | Case Material Aluminum, ABS, Polycarbonate, Plastic | Case Material Aluminum |
Keycaps Material PBT | Keycaps Material PBT | Keycaps Material PBT |
Dimensions 20 x 319 x 126 mm | Dimensions 13 x 319 x 129 mm | Dimensions - |
Weight 566g | Weight 750g | Weight - |
The Keychron K3 Max SE is a compact, ultra-slim mechanical keyboard designed for users who want a versatile wireless or wired setup with easy customization. It suits professionals and hobbyists who value a low-profile typing experience and need a 75% layout that balances key availability with desk space. Its hot-swappable switches and software-based macro programming appeal to users who frequently adjust their key functions.
The keyboard offers multiple connection modes: 2.4 GHz wireless for stable, low-latency use; Bluetooth for convenience with mobile devices; and wired USB for zero-latency and charging. Users can switch between modes depending on their setup and priorities.
The low-profile LSA keycaps combined with hot-swappable mechanical switches deliver a typing feel that is lighter and less tall than traditional mechanical keyboards. This can reduce finger strain during long sessions. The ability to swap switches allows users to tailor the tactile or linear feedback to their preference. Sound levels and acoustics will vary based on chosen switches.