Kailh BOX Hush Pro Deep Sea Whale Silent Tactile

This tactile switch offers a quiet typing experience with a moderate actuation force, suited for users who want tactile feedback without loud clicks. It fits well for office environments or shared spaces where noise reduction is important, while still providing clear keypress confirmation. Gamers or typists who prefer a soft yet responsive tactile bump may find it suitable. It is plate mount only and supports SMD LEDs.

Feel & Sound

• Delivers a tactile bump with a 40cN actuation force, providing noticeable feedback without being too heavy.
• Silent design reduces noise, making it quieter than typical tactile switches, suitable for noise-sensitive settings.
• Rounded BOX-style stem offers smooth tactile engagement with less scratchiness, contributing to a refined feel.

Actuation Characteristics

• Pre-travel of 2.00mm and total travel of 3.60mm balance responsiveness with comfortable key travel.
• Actuation force variance of 10cN means some variation in feel between switches is possible but within typical tolerances.
• Bottoming out is smooth due to factory lubrication, reducing harsh impact on keypresses.

Build Quality

• Polycarbonate top housing and nylon bottom housing provide durability and consistent performance over time.
• Stem made from PA12 nylon with a POM tactile leaf, designed for smooth operation and longevity.
• Factory lubed to reduce initial scratchiness and improve smoothness without requiring immediate modification.

Compatibility

• Plate mount only, so it requires a compatible keyboard plate for installation.
• Supports SMD LEDs, enabling backlighting options on compatible PCBs.
• Not hot-swap compatible, limiting ease of switch replacement without soldering.

Trade-offs

• Not fully silent, so some sound is still present, though quieter than standard tactile switches.
• Plate mount restricts use in hot-swap or PCB mount-only keyboards.
• Force variance may lead to slight inconsistency across a full keyboard build.

Use Cases

• Good for office workers or shared environments needing quieter tactile feedback.
• Suitable for typists who want a tactile bump without loud clicks or sharp feedback.
• Less ideal for gamers who prefer faster linear switches or very light actuation.