Keygeek Butterfly Linear Switch

The Keygeek Butterfly Linear is a linear switch designed by Suixin Studio to deliver a deep, “thocky” sound profile.

Main Features

• The stem has a spherical tip that, when pressed, comes into contact with a spherical point in the bottom housing, creating a distinctive deep sound.
• High-quality materials and refined design, optimized to reduce unwanted noises (such as spring or leaf sounds).

Specifications

• Switch Type: Linear
• Manufacturer: Keygeek
• Designer: Suixin Studio
• Materials:
  • Stem: U5 UPE (spherical tips)
  • Top housing: PA66
  • Bottom housing: PA12 (with spherical contact point)
• Operating Force: 42 g ± 5 g / 50 g ± 5 g
• Bottom-out Force: 48 g ± 5 g / 60 g ± 5 g
• Pre-travel: 2.0 mm ± 0.2 mm
• Total Travel: 3.6 mm ± 0.2 mm
• Spring: Single, Japanese wire 19 mm or 22 mm
• Factory Lubed: Yes, ready to use

Key Highlights

• Innovative stem design for a deep and thocky sound.
• More solid bottom-out feel compared to other spherical-tip switches.
• Smooth actuation thanks to factory lubing.
• Ideal acoustics for “thocky keyboard builds.”
• Produced with high-precision molds and exclusive material blends.

Perfect For

• Everyday typing, both light and heavy.
• “Thocky” keyboard builds.
• Work environments where smoothness and quietness are desired.
• Users who want ready-to-use switches without additional modding.