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| Royal Kludge RK84 | Xinmeng M75 Pro | Keychron J2 |
63 Overall/ Value 63.1Build Quality 50.4Customizability 69.0Performance 63.2Productivity 77.7Portability 81.0![]() | 80 Overall/ Value 79.7Build Quality 74.9Customizability 79.8Performance 81.6Productivity 81.8Portability 80.1![]() | 77 Overall/ Value 77.4Build Quality 71.4Customizability 86.9Performance 70.3Productivity 74.0Portability 73.4![]() |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 4.3 stars (9 reviews) |
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Name Royal Kludge RK84 | Name Xinmeng M75 Pro | Name Keychron J2 |
Release year 2021 | Release year 2024 | Release year 2025 |
Switch Options Linear, Tactile, Silent, Clicky | Switch Options Linear, Silent | Switch Options Linear, Tactile, Clicky |
Profile Normal Profile | Profile Normal Profile | Profile Normal Profile |
Hot Swappable | Hot Swappable | Hot Swappable |
Layout Size 75% | Layout Size 75% | Layout Size 75% |
Layout Standard ANSI | Layout Standard ANSI | Layout Standard ANSI |
Layout Ergonomics Normal | Layout Ergonomics Normal | Layout Ergonomics Normal |
Knob Support | Knob Support | Knob Support |
Display Support | Display Support TFT | 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 3750 mAh | Battery capacity 5000 mAh | Battery capacity 3750 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 - |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight Rgb | Backlight Rgb | Backlight Rgb, White |
Case Colors | Case Colors | Case Colors |
Case Material Plastic | Case Material Plastic | Case Material - |
Keycaps Material PBT, ABS | Keycaps Material PBT | Keycaps Material PBT |
Dimensions 41 x 315 x 125 mm | Dimensions 20 x 326 x 152 mm | Dimensions - |
Weight 803.5g | Weight 900g | Weight - |
The Royal Kludge RK84 is a compact 75% mechanical keyboard designed for users who want wireless flexibility and customization in a smaller form factor. It suits hobbyists who like to swap switches and customize layouts, as well as users needing a versatile keyboard for both work and casual use. Its wireless options and programmability make it adaptable, though it may be less ideal for those prioritizing a full-size layout or specialized typing acoustics.
The RK84 supports Bluetooth and 2.4 GHz wireless connections, allowing pairing with multiple devices and convenient switching. Wired USB-C connection is available for low-latency or charging needs. This makes it suitable for users who move between devices or prefer a clean desk setup without cables.