Gateron Lunar Probe Linear Switches

This linear mechanical switch suits users who prefer a smooth, consistent keystroke with moderate resistance. It fits well for typists and gamers seeking a light actuation force without tactile bumps or clicks. Its design supports standard MX-compatible keycaps and PCB mounting, making it a practical choice for custom builds that prioritize straightforward, reliable performance.

Feel & Sound

• Delivers a smooth, linear keystroke without tactile feedback or audible click.
• Not designed for silent operation, so it produces typical mechanical switch noise.
• Bottoming out requires slightly more force than actuation, offering a subtle physical cue.

Actuation Characteristics

• Light actuation force of 45g allows for quick key presses with reduced finger fatigue.
• Pre-travel of 1.8mm helps register inputs early, beneficial for fast typing or gaming.
• Total travel of 3.6mm provides a standard key depth, balancing speed and comfort.

Build Quality

• Polycarbonate top housing and nylon PA66 bottom housing combine for durability and moderate sound resonance.
• POM stem reduces friction, contributing to smooth keypresses.
• 22mm double-stage spring offers consistent resistance and a defined bottom-out feel.
• Factory lubed to reduce initial scratchiness, improving out-of-the-box smoothness.

Compatibility

• PCB mount with 5 pins ensures stable installation on compatible PCBs.
• Supports SMD LED lighting, allowing for backlighting customization.
• Standard MX stem fits most keycap sets designed for MX-style switches.

Trade-offs

• Not silent, so it may be less suitable for noise-sensitive environments.
• Linear feel may lack feedback preferred by users who want tactile or clicky responses.
• Unknown long-term durability and modding potential beyond factory lubrication.