HMX SongYue Linear Switches

This linear switch targets users who want fast, smooth key presses with a longer travel distance. It suits gamers and typists prioritizing quick actuation and consistent keystrokes. Its factory lubrication reduces initial scratchiness, supporting a smoother feel out of the box.

Feel & Sound

• Linear and smooth with no tactile bump or click, offering consistent keystrokes.
• Longer total travel provides a deeper key press, which some users may find more satisfying or deliberate.
• Factory lubrication on stem and housing rails reduces scratchiness, contributing to quieter operation.
• Sound profile is generally muted, but exact noise levels depend on keyboard build and keycaps.

Actuation Characteristics

• Fast actuation at a short pre-travel distance supports quick input response.
• Operating force is moderate, balancing lightness with enough resistance to avoid accidental presses.
• Bottom-out force is slightly higher, giving a firm feel when fully pressed.

Build Quality

• Durable nylon housings (PA12 top, PA66 bottom) contribute to stability and sound dampening.
• T2 stem material enhances smoothness and reduces wear over time.
• Extended 22mm spring length helps maintain consistent force throughout the key press.

Modification Potential

• Factory lube uses a mix of GPL105 and GPL205 on critical parts, reducing initial friction.
• Additional lubing may further smooth the switch but is not required for most users.
• Unknown how it responds to filming or spring swapping due to lack of data.

Trade-offs

• Longer travel may slow down rapid key presses compared to shorter-travel switches.
• Unknown stem wobble and spring ping levels, which could affect feel and sound for some users.
• Linear design lacks tactile feedback, which may be less suitable for users who prefer noticeable key actuation points.