
Kailh BOX Jam Ice Cream Switch
37g Light Touch · 1.0mm Fast Trigger · POM Housing
Frictionless linear glide | Berry red stem + creamy white housing | Factory pre‑lubed | 50M life
Frustrated with Scratchy Linears & Slow Triggers?
Scratchy, Inconsistent Feel
Standard linear switches often have friction and inconsistency that ruin the typing experience.
Slow Actuation
2.0mm pre‑travel feels sluggish, especially for gamers who need instant response.
Harsh, Pingy Sound
Many linears produce metallic ping or hollow clacks that distract from immersion.
Why BOX Jam Ice Cream Is the Sweetest Linear

Ultra‑Short Pre‑Travel · Instant Response
Full POM Construction + Factory Pre‑Lube = Buttery Smoothness
🛡️ BOX Sealed Structure | Gold‑Plated Contacts | 50M Life
Dust‑proof, spill‑resistant, built to lastDust‑Proof Architecture + Anti‑Oxidation Pins = 50M Cycles
📊 BOX Jam Ice Cream vs. Standard Linear Switches
| Feature | Standard Linear Switch | Kailh BOX Jam Ice Cream |
|---|---|---|
| Operating Force | 50–60 gf | 37 gf — featherlight, fatigue‑free |
| Actuation Travel | 2.0 mm | 1.0 mm — ultra‑fast trigger |
| Materials | PC/PA blends, higher friction | Full POM + PUK stem — self‑lubricating, ultra‑smooth |
| Lubrication | None or inconsistent dry lube | Factory pre‑lubed — ready to use |
| Sound Profile | Scratchy or pingy | Crisp, muted “thock” — non‑intrusive |
| Dust Protection | Open leaf, vulnerable | BOX sealed structure — IP54‑like |
| Mechanical Life | 50 million cycles | 50 million cycles (with gold contacts) |
Key Specs at a Glance
Linear
37 ± 10 gf
1.0 ± 0.4 mm
3.5 ± 0.3 mm
POM top/bottom, PUK stem
Factory pre‑lubed
BOX dust‑proof
50 million cycles
📋 Full Specifications
| Manufacturer | Kailh Electronics |
|---|---|
| Series | BOX Jam Ice Cream (Linear) |
| Switch Type | Linear, ultra‑fast |
| Top Housing Material | POM (Creamy White) |
| Stem Material | PUK (Berry Red) – high‑grade self‑lubricating |
| Bottom Housing Material | POM (Creamy White) |
| Operating Force | 37 ± 10 gf |
| Actuation Travel (Pre‑Travel) | 1.0 ± 0.4 mm |
| Total Travel | 3.5 ± 0.3 mm |
| Spring Type | 15.2 mm precision coil, optimized for light feel |
| Contact Technology | Gold‑plated contacts, BOX sealed leaf |
| Lubrication | Factory pre‑lubricated (light oil on rails & spring) |
| Light Diffuser | Integrated light guide — uniform RGB diffusion |
| Mechanical Life | ≥50,000,000 keystrokes |
| Pin Configuration | 5‑pin (PCB‑mount), compatible with 3‑pin after clipping |
| Compatible Keyboards | Any MX‑style hot‑swap PCB (Keychron, NuPhy, Glorious, etc.) |
| Noise Level | Medium‑loud (crisp, muted thock) |
| Best For | Gamers, speed typists, aesthetic builds, smooth linear lovers |
💬 What the Community Says
"The 1.0mm actuation is insane — my inputs feel instant. And the smoothness out of the box is unreal. Plus the berry red stem looks amazing in my transparent build."
"Finally a linear that combines ultra‑light weight with a satisfying muted thock. No ping, no scratch — just buttery smoothness. Highly recommend for long coding sessions."
"The BOX structure gives me confidence against dust. I’ve been using these for months and they still feel like day one. Best value linear I’ve bought."
🛡️ Our Promise
Free worldwide shipping on orders over $80, 30‑day hassle‑free returns, and a 1‑year warranty. If the switches are incompatible with your keyboard, we'll cover return shipping.
Global Free Shipping
Free standard shipping on orders $80+
30-Day Returns + Compatibility Promise
Return within 30 days for any reason. If the switches aren't compatible, we'll exchange or refund with free return shipping.
1-year warranty covers manufacturing defects.
Fast Processing
Orders are quality-checked and shipped within 24 hours.
Refunds processed within 4 weeks.