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| GravaStar Mercury K1 | Leobog Hi8SE | NPK Club RO75 Pro |
62 Overall/ Value 61.6Build Quality 66.7Customizability 63.4Performance 65.4Productivity 66.6Portability 92.3![]() | 76 Overall/ Value 75.5Build Quality 69.3Customizability 67.6Performance 77.3Productivity 83.7Portability 91.7![]() | 72 Overall/ Value 71.7Build Quality 81.4Customizability 86.2Performance 85.1Productivity 89.0Portability 92.0![]() |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 0.0 stars (0 reviews) |
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Name GravaStar Mercury K1 | Name Leobog Hi8SE | Name NPK Club RO75 Pro |
Release year 2024 | Release year 2024 | Release year 2025 |
Switch Options Linear | Switch Options Linear | Switch Options Magnetic |
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 | 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 - | Polling Rate - | Polling Rate 1000 Hz |
Battery capacity 8000 mAh | Battery capacity 8000 mAh | Battery capacity 6000 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 Gasket Mount | Mount Style Gasket Mount | Mount Style Gasket Mount |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight Rgb | Backlight Rgb, South-face | Backlight Rgb |
Case Colors | Case Colors | Case Colors |
Case Material Aluminum | Case Material Aluminum | Case Material Aluminum |
Keycaps Material - | Keycaps Material - | Keycaps Material PBT, ABS |
Dimensions 46 x 343 x 156 mm | Dimensions 33 x 130 x 322 mm | Dimensions 20 x 316 x 136 mm |
Weight 1080g | Weight 1600g | Weight 1680g |
The GravaStar Mercury K1 is a compact 75% wireless mechanical keyboard designed for users who want flexibility in connectivity and switch customization. It suits hobbyists who frequently swap switches, gamers seeking a stable and visually distinctive keyboard, and typists who prefer a linear key feel. Its hot-swappable sockets and multiple wireless options offer adaptability, while its unique design adds a visual element to the workspace.
The keyboard features an aluminum alloy exoskeleton that balances strength and lightness. Its gasket-mounted design reduces typing noise and provides a softer keypress feel. The symmetrical metal frame enhances stability, making it suitable for both intense gaming and extended typing sessions.
The linear Kailh switches have an actuation force around 40gf and a total travel distance near 3.5mm, delivering a smooth and quiet keystroke. The gasket mount helps dampen sound and vibration, improving comfort during long use. Hot-swappable sockets enable users to experiment with different switches to tailor the typing feel.
The Mercury K1 supports wired USB Type-C connection and wireless modes via 2.4 GHz and Bluetooth. This allows seamless switching between devices or use in different environments. Wireless latency and battery life details are unknown, so users prioritizing low latency or long wireless sessions should consider this.