Kailh
Kailh Box Marshmallow Linear





Top-Tier Ultra-Light Linear Switch Kailh BOX Marshmallow Suffering from stiff, aching fingers after marathon coding or gaming sessions? Sick of dry, scratchy linears that swallow your RGB and look cheap? Peripherals titan Kailh delivers a therapeutic "endgame" switch that perfectly balances extreme fatigue-free comfort with a dreamy desk aesthetic.The Marshmallow switch blends extreme feather-light typing with gorgeous Macaron aesthetics. Uncompromisingly built with 100% Full POM material, it pushes the actuation force down to a cloud-like 39gf. Furthermore, it innovates with a 360° Arc Light Guide and Kailh's legendary BOX sealed dust/waterproof structure. Whether you're typing at high APM or building the ultimate pastel pink setup, the Marshmallow switch delivers the ultimate endgame feel: "The more you use it, the smoother it gets." ☁️ 39gf Cloud-Like Press 🎀 100% Full POM Build ✨ 360° Arc Light Guide 🛡️ BOX Sealed Protection 🧴 Factory Pre-Lubed 39gf Fatigue-Free Force 1.7mm Agile Actuation IP54-ish Dust & Water Resist 80M+ Keystroke Lifespan Core Advantages: The Ultimate Answer for Comfort & Aesthetics We know you need more than just a switch that registers inputs. You need a reliable daily driver that lets your fingers completely relax, while flawlessly showcasing your keyboard's RGB aesthetic. The Marshmallow eradicates fatigue, harsh lighting, and scratchiness. The Problem: Finger Fatigue & Scratchiness Standard linears (45-50gf) cause severe joint stiffness during marathon typing or coding. Plus, basic plastics dry out, leaving you with a sandy, scratchy friction noise. The Problem: Harsh RGB Hotspots Basic clear housings or generic light guide slots allow bottom LEDs to shine straight through. This creates harsh, glaring hotspots that make your expensive custom keyboard look cheap and uneven. The Problem: Dust Failure & Double-Clicking Open-style cross stems easily trap dust, pet hair, and crumbs, causing metal contacts to oxidize and fail. This leads to
Last Updated: September 22, 2026
Specifications
Physical Specifications
- Actuation Force
- 39 ± 10 gf (Extremely light, fatigue-free)
- Pre-travel
- 1.7 ± 0.4 mm (Agile response)
- Total Travel
- 4.0 ± 0.3 mm (Classic full keystroke, solid bottom-out)
Build & Materials
- Stem Material
- 100% POM (Self-lubricating)
- Factory Lubed
- Yes
Profile Information
- Profile
- Standard Profile
- Type
- Linear
- Silent
- No
- Pin Count
- 5
