HMX Mochi Linear Switches

This linear switch offers a full 4.0mm travel distance with a moderate actuation force, making it suitable for users who prefer a smooth keystroke with a deeper sound profile. It fits well for typists or gamers who want a consistent linear feel without tactile bumps or clicks, and who appreciate a quieter, rounded sound signature during use.

Feel & Sound

• Linear and smooth keystroke with no tactile feedback or click noise.
• Longer travel than typical HMX switches, providing a more deliberate keypress.
• Unique spherical stem tip creates a deep, mild, and rounded sound, reducing sharp or high-pitched noises.

Actuation Characteristics

• Moderate actuation force around 45g, balancing responsiveness and fatigue.
• Pre-travel of approximately 2.0mm allows for noticeable key engagement before actuation.
• Total travel of 4.0mm offers a full keypress experience, which may feel slower compared to shorter-travel switches.
• Bottom-out force slightly higher than actuation, giving a firm end to each keystroke.

Build Quality

• Top housing made from PA66, a durable nylon material contributing to stability.
• Bottom housing uses POM (P4), known for low friction and smoothness.
• Stem features a spherical H2 design, affecting sound and key feel.
• Spring is single-stage with 22mm length, providing consistent resistance.
• Factory lubed, which helps reduce scratchiness and noise out of the box.

Compatibility & Mounting

• 5-pin PCB mount with MX-compatible cross stem, compatible with most standard mechanical keyboards.
• Unknown LED compatibility and hot-swap friendliness.

Trade-offs

• Longer travel may not suit users seeking faster actuation or shorter keypresses.
• Deep sound profile may be less desirable in quiet office environments.
• Unknown response to additional modifications such as filming or re-lubing.