HMX Butter Silent Tactile Switches

This silent tactile switch suits users who want quiet typing with noticeable tactile feedback. It reduces noise on both key press and release, making it a good choice for office environments or shared spaces. The tactile bump is present without being overly sharp, offering a balance between responsiveness and silence.

Feel & Sound

• The switch provides a tactile bump that is clear but not aggressive, supporting accurate keypresses without fatigue.
• Mute pads on the stem rail reduce sound at both the top and bottom of the key travel, minimizing clack and thock noises.
• Bottoming out remains responsive, so users get feedback without harsh noise.

Actuation Characteristics

• Actuation force is moderate, requiring 37g to 43g depending on variant, suitable for users who prefer neither very light nor heavy keys.
• Pre-travel of around 2.5mm allows for timely key registration without feeling too short or long.
• Total travel is about 3.3mm, standard for most mechanical switches, supporting familiar typing rhythm.

Build Quality

• Constructed with PA66 (nylon) housings and a POM stem, which contribute to durability and smooth key movement.
• Springs are single-stage KOS type, providing consistent force throughout the press.
• Factory lubrication uses a precise method aimed at smoothness and reducing scratchiness, lowering the need for immediate re-lubing.

Compatibility & Mounting

• 5-pin PCB mount MX-style design ensures broad compatibility with most mechanical keyboard PCBs and plates.
• Unknown LED compatibility and hot-swap friendliness.

Trade-offs

• While silencing reduces noise, it may slightly soften the tactile feedback compared to unsilenced tactile switches.
• Unknown long-term durability and how the factory lube holds up over time.
• Not ideal for users seeking very light or very heavy actuation forces.