haimu SW x MP Linear Switches

The Haimu SW MP Linear switch is a smooth linear switch designed for users who want a distinct, loud bottom-out sound alongside consistent keystrokes. It suits typists and gamers who prefer a clean, uninterrupted keypress but also enjoy noticeable acoustic feedback from their typing. This switch is less ideal for those seeking a quiet or tactile experience.

Feel & Sound

• Linear action with no tactile bump, providing smooth key travel.
• Produces a loud, sharp bottom-out sound due to metal inserts in the stem and housing, creating a distinctive clack.
• Factory lubrication reduces scratchiness and smooths keystrokes.
• Sound profile is bold and pronounced, which may be distracting in quiet environments.

Actuation Characteristics

• Moderate actuation force around 43g, suitable for balanced typing and gaming.
• Bottom-out force is higher at approximately 55g, contributing to a firm feel at the end of the keypress.
• Total travel distance of 3.8mm offers a standard key travel experience.

Build Quality

• Top and bottom housings made from POM, a durable plastic that supports smooth key movement.
• Metal inserts in both the stem pole and bottom housing enhance sound and bottom-out feedback.
• Stem made from UPE with metal insert, balancing smoothness and structural integrity.
• Factory lubrication helps reduce initial scratchiness and spring noise.

Compatibility

• Compatible with SMD LEDs, allowing for backlighting customization.
• Unknown if plate mount or hot-swap compatible; check keyboard specifications before purchase.

Trade-offs

• The loud bottom-out sound may not suit office or shared spaces.
• Metal inserts increase noise but add a unique acoustic signature, which some may find appealing or distracting.
• Unknown long-term durability and modding potential beyond factory lube.