Outemu Butterfly Silent Linear Switches

The Outemu Butterfly Silent Linear is a quiet, smooth switch designed for users who prioritize near-silent typing with a gentle feedback. It suits office workers, typists, and gamers seeking low-resistance keystrokes without tactile bumps or loud clicks. Its factory lubrication and soft materials reduce noise, making it a good choice for shared or noise-sensitive environments.

Feel & Sound

This linear switch offers a smooth keystroke with minimal resistance, providing a light and effortless typing experience. It produces a subtle scratch sound similar to some premium silent switches, adding a mild auditory feedback without being disruptive. The soft TPU plastic stem and dustproof design help dampen noise on both press and release, resulting in a quiet, muted sound profile.

Actuation Characteristics

The switch actuates with a relatively low force, making it easy to press repeatedly without fatigue. Its total travel distance is standard, allowing for comfortable key movement and a predictable bottom-out feel. The force curve is consistent, with no tactile bump, which benefits users who prefer smooth keypresses over tactile or clicky feedback.

Build Quality

Constructed with hardened polycarbonate housings, the switch offers durability and a stable typing feel. The stem combines lengthened POM with TPU soft plastic to reduce noise and wear. Factory lubrication improves smoothness and reduces spring noise, while the 20mm spring balances lightness with reliable key return.

Compatibility & Use Cases

The switch uses a 5-pin PCB mount, compatible with most standard mechanical keyboards. It is well suited for quiet office settings, casual gaming, and extended typing sessions where noise reduction is important. It may be less ideal for users who want tactile or clicky feedback or who prefer heavier switches for precise actuation.

Trade-offs

While the switch minimizes noise, the subtle scratch sound may be noticeable to users expecting complete silence. Its linear design lacks tactile feedback, which some typists find less satisfying. Unknown factors include hot-swap compatibility and long-term durability beyond standard materials.