Haimu Heartbeat Silent 55g Linear PCB Mount Switch
Best silent linear switch for office workers needing quiet typing.
Experience a superior typing journey with the Haimu Heartbeat Silent 55g Linear Switch. Engineered for tranquility, these switches deliver a smooth, linear feel with minimal noise, making them perfect for quiet environments. Crafted with a durable POM stem and Nylon housing, they ensure consistent performance and longevity. Featuring a balanced 55g actuation force and PCB mount compatibility, these switches offer a refined and comfortable typing experience for both work and leisure.
$21.00
Owner Satisfaction
4.6
/ 5
Category Rank
1604
/ 6542
#1604 in Keyboard Keys & Caps
Price vs Category Average
-51%
Below average
Actuation Force
55
/ cN
Who it's for
- Office workers needing a quiet, unobtrusive typing experience
- Typists preferring a smooth, consistent, and predictable keystroke
- Long-form writers seeking comfort and reduced finger fatigue
Who should skip it
- Purists who prefer the full travel of standard switches
- Enthusiasts who crave a crisp, resonant acoustic profile
- Typists who rely on tactile bumps for actuation confirmation
Performance breakdown
Acoustic Dampening
Advanced internal silencing makes these among the quietest switches available today.
Linear Smoothness
Factory lubrication ensures a buttery, friction-free travel from top to bottom.
Build Durability
POM stems and high-grade nylon housing offer exceptional long-term structural integrity.
Actuation Consistency
The 55g spring provides a reliable, uniform resistance for every keystroke.
Installation Versatility
Standard PCB mount design integrates seamlessly into most custom mechanical builds.
Typing Comfort
Balanced weighting reduces finger fatigue during extended work or gaming sessions.
Key Specs
Actuation Force
55 cN
Total Travel
3.8 mm
Operating Position
2.0 mm
Stem Material
POM
Housing Material
Nylon
Spring Length
15mm
Lubrication
Lubed
Stem Mount Type
MX Style (Cross)
Features
- Silent operation for quiet typing
- Smooth linear feel
- Durable POM stem and Nylon housing
- Balanced 55g actuation force
- PCB mount compatibility
- Noise-reducing design innovations
What customers say
Customers overwhelmingly praise the Haimu Heartbeat Silent switches for delivering an exceptional, quiet typing experience. The core theme is superior silence, effectively minimizing noise during both key presses and releases without compromising the feel. Reviewers frequently note the impressive out of box smoothness, suggesting factory lubrication reduces the need for immediate modification. The 55g linear weight strikes a comfortable balance, ideal for long typing or gaming sessions. Furthermore, users recognize the strong value, finding these premium silent switches accessible in price. Overall, the sentiment confirms this product successfully meets its promise of quiet performance and excellent user satisfaction.
Know before you buy
These switches are specifically engineered for silence, utilizing internal dampening to significantly reduce the bottom-out and return noise compared to standard mechanical switches. While they are not completely soundless, they are an excellent choice for shared office spaces or quiet home environments.
At 55g, these switches are slightly heavier than the typical 45g found in standard linear red switches. This provides a bit more resistance, which many users find helps prevent accidental key presses and offers a more substantial, deliberate typing feel.
No, these switches come pre-lubricated from the factory. They are designed to provide a smooth, consistent feel right out of the box, so you can install them immediately without needing to perform additional maintenance.
These are 5-pin PCB mount switches, which include two extra plastic guide pins for added stability. If your keyboard only supports 3-pin plate-mount switches, you can easily clip off the two plastic pins with a pair of flush cutters to make them compatible.
Yes, they feature a standard MX-style cross stem. This ensures they are compatible with the vast majority of aftermarket keycap sets available on the market.
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$21