JKDK XCJZ – Butterfly Silent Linear Switches

Experience ultra-smooth and silent typing with the Butterfly Silent Linear Switch—designed for mechanical keyboard users who prefer soft presses and quiet performance.
Developed by XCJZ and JDK, this upgraded version of the Dopamine switch delivers clean linear movement with excellent sound dampening, thanks to its TPU soft rubber bottom-out structure and enhanced lubrication.

Manufactured by Outemu, each switch comes pre-lubed with a semi-fluid grease for smoother keystrokes and reduced friction. Its 20mm single-stage extended spring ensures a soft rebound and light feel, ideal for quiet workspaces or night typing sessions.

Key Features

Silent Linear Design
Smooth, light, and quiet—ideal for low-noise environments and extended use.

2.0mm Actuation / 3.7mm Bottom-Out
Standard key travel with dampened bottom-out for reduced sound and finger fatigue.

Materials & Construction

• Stem: POM with TPU soft rubber

• Top Housing: Hardened PC

• Bottom Housing: Hardened PC

• Spring: 20mm single-stage extended spring

• Structure: 5-pin hot-swappable, 4-clip top housing with light guide block

Factory Lubed
Lubricated stem, spring, and housing for reduced friction and consistent feel.

Actuation Pressure

• Trigger Force: 37g ± 10g

• Bottom-Out Force: 42g Max

• Return Force: 22g ± 10g

• Preload: 25g Min

5-Pin Hot-Swappable Compatibility
Compatible with most modern mechanical keyboards featuring 5-pin hot-swap sockets.

Designed for quiet precision and effortless fluidity, the Butterfly Switch is where silence meets refined performance.