HMX Xinhai Switches – 45g Linear – Smooth and Silent Typing

The HMX Xinhai switches are lightweight linear switches with an actuation force of 45g. They deliver an extremely smooth keystroke with minimal resistance, ideal for users who prefer speed and comfort while typing or gaming. With their quiet sound profile and stable construction, they’re perfect for both home and office setups.
Specifications
- Type: Linear
- Actuation Force: 45g ± 5g
- Pre-Travel: 1.9 ± 0.4mm
- Total Travel: 3.7 ± 0.3mm
- Materials: POM stem, Nylon bottom housing, PC top housing
- Lifespan: Up to 80 million keystrokes
Performance & Feel
The Xinhai provides a silky-smooth linear movement without any scratchiness. With its light spring pressure, it’s ideal for fast inputs and long typing sessions. Users often describe the sound as “quiet and buttery,” with a consistent bottom-out and no ping or wobble.
What do users say on forums?
“Absolutely my favorite – super light yet stable.”
“Feels better than many expensive linears. Great for lubing.”
“Perfect switch for anyone who loves smooth, quiet keys.”
Advantages
- Ultra-smooth linear feel
- Light actuation – reduces fatigue
- Quiet profile – ideal for work or home
- High build quality
Disadvantages
- Not ideal for those wanting strong tactile feedback
- May feel too light for heavy typists
Comparison Table
| Switch | Sound | Feel | Best For |
|---|---|---|---|
| HMX Xinhai | Soft, quiet | Light, buttery-smooth | Fast typists, quiet setups |
| Gateron KS-9 Yellow | Slightly louder | Light, smooth | Gaming, general use |
Where to Buy?
Conclusion
The HMX Xinhai is an excellent choice for anyone seeking a light, smooth, and silent linear switch. It performs exceptionally well for both gaming and typing, providing comfort and precision with every press. An ideal upgrade for those who want speed without noise.
Explore our full Switch Collection at RGBKeys for more options.

