Kailh BOX Crystal Jellyfish V2 PRO — Silent Linear with IP56 | 45gf · 100M Cycles
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$0.35
Regular price
$0.60
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Kailh BOX Crystal Jellyfish V2 PRO — Silent Linear with IP56 | 45gf · 100M Cycles
Sale price
$0.35
Regular price
$0.60
(-42%)
Kailh Premium Clear Linear
Kailh Crystal Jellyfish Switch
The Ultimate Symphony of 100% Crystal-Clear RGB Radiance and a Solid "Thocky" Bottom-Out.
Are you tired of dull, opaque housings swallowing up your expensive RGB backlighting? Or sick of transparent switches that compromise on feel, ending up mushy like "stepping in mud"? Kailh brings you the flawless endgame all-rounder designed for RGB enthusiasts and tactile purists—the "Kailh Crystal Jellyfish Linear Switch."
Engineered to push light transmittance and typing solidity to their absolute physical limits. It features an unprecedented 100% high-transparency PC construction across the stem, top housing, and base. More importantly, it utilizes an extended stem and a long spring, paired with a golden 45gf actuation, to completely eradicate the "mushy" curse of clear switches. Boasting god-tier aesthetics, BOX sealed stability, and an exceptionally crisp bottom-out, it is the ultimate upgrade for your minimalist, high-illumination desk setup.
100%
Optical PC
3.3mm
Short Travel
100M
Lifespan Cycles
IP56
Dust & Water Proof
Core Advantages: The Ultimate RGB & Linear Companion
We know you love the solid confirmation of a mechanical strike, but refuse to sacrifice flawless RGB presentation. The Crystal Jellyfish is built to break the "transparency vs. feel" dilemma.
The Problem: Dim & Muted RGB
Standard opaque or frosted housings swallow up LED light and scatter it poorly, leaving your premium keyboard lighting looking dull, patchy, and compromised.
The Problem: Mushy & Hollow Feel
To achieve a clear housing, many transparent switches compromise on materials, resulting in a soft, mushy bottom-out and a cheap, hollow, rattly sound.
The Problem: Dust & Rapid Decay
Open-stem clear switches easily invite dust and crumbs. Once debris enters, the aesthetic is ruined, quickly leading to scratchiness and double-clicks.
✨ Kailh Crystal Jellyfish Linear: The endgame solution offering 100% full-PC transparency, an extended stem for a deep "Thock", and a legendary 100M cycle BOX sealed structure.
Say Goodbye to Dim Lighting
100% Crystal-Clear PC Elevates RGB Unhindered
Traditional Issue
Standard opaque or frosted housings swallow up LED light or alter the color temperature, leaving your premium keyboard lighting looking dull and patchy.
The Kailh Advantage
Spares no expense utilizing 100% optical-grade high-transparency Polycarbonate (PC) for the stem, top housing, and base. Zero frosting, zero tint—pure as ice.
The Benefit
Turn your keyboard into the absolute visual centerpiece of your desk. The fully pure structure eliminates all light obstruction. RGB beams penetrate losslessly, creating a polished, jewel-like radiant halo without any dark spots.
Say Goodbye to Mushy Hollows
Extended Stem + Long Spring for a Solid "Thock"
Traditional Issue
Many fully transparent linear switches on the market compromise typing feel for aesthetics, resulting in a mushy bottom-out and a scattered, hollow acoustic profile.
The Kailh Advantage
Meticulously tuned with an Extended Stem and a long spring, shortening the total travel to a crisp 3.3mm, paired with the classic, comfortable 45gf operating force.
The Benefit
Every keystroke is a profoundly satisfying physical reward. The extended stem creates an "early bottom-out" effect, transforming the sound into a deep, solid "Thock" while granting your fingertips a highly defined, rigid confirmation. Farewell to "stepping in mud."
Say Goodbye to Dust & Decay
BOX Sealed Safety & 100M Cycle Durability
Traditional Issue
Open transparent switches easily invite dust or crumbs. Over time, they not only look dirty but become scratchy, double-click, and require tedious manual lubing.
The Kailh Advantage
Equipped with Kailh's patented BOX sealed-chamber technology, achieving IP56 dust and water resistance. Fully precision factory-lubed and certified for a staggering 100-million keystroke lifespan.
The Benefit
Fear no spills or dust; feel brand new for years. The sealed structure locks out debris from core contacts and minimizes stem wobble. Factory lubing eliminates manual hassle—just plug and play for a buttery, ping-free glide.
Feature Comparison: The Crystal Upgrade
| Features | Generic Clear Linear Switch | ✨ Kailh Crystal Jellyfish Linear |
|---|---|---|
| Housing Optics | Frosted / Semi-transparent | 100% Pure Optical PC — Maximizes RGB brightness |
| Bottom-Out Feel | Long travel, soft & mushy | Extended Stem (3.3mm) — Solid, crisp confirmation |
| Acoustic Profile | Hollow, plasticky, rattly | Concentrated "Thock" — Deep and satisfying |
| Protection | Open stem, gathers dust | BOX Structure — IP56 Water & Dust Proof |
| Lifespan | ~ 50 Million Cycles | Certified 100 Million Cycles (100M) |
| Lubrication | Usually dry and scratchy | Precision factory lubed — Buttery out of the box |
Technical Specifications
Hardcore data for keyboard enthusiasts.
💎Material
100% Optical PC
🧱Bottom-Out
Solid "Thock"
🪶Force
45 gf
🛡️Lifespan
100M Cycles
| Product Name | Kailh Crystal Jellyfish Linear Switch |
|---|---|
| Switch Type | Linear Mechanical Switch (Smooth like Red, but firmer bottom-out) |
| Protection Tech | BOX Sealed Chamber (IP56 Waterproof & Dustproof) |
| Housing Material | 100% Optical-Grade Transparent PC (Top & Base) |
| Stem Material | 100% Transparent PC (Extended Stem Design) |
| Actuation Force | 45 ± 15 gf (Classic golden standard) |
| Pre-Travel (Actuation) | 1.8 ± 0.4 mm (Rapid response) |
| Total Travel | 3.3 ± 0.3 mm (Early bottom-out, solid feel) |
| Spring Specs | Extended Long Spring (Provides strong, linear rebound feedback) |
| Lifespan | 100,000,000 Keystrokes (100M) |
| Lubrication | Premium Factory Pre-lubed (Rails, Spring, Core friction zones) |
| Pin Configuration | 5-Pin (PCB Mount stability; can clip pins to fit 3-pin boards) |
| LED Compatibility | Perfectly supports SMD & through-hole LEDs, flawless omni-directional diffusion |
Customer Reviews
★★★★★
"The ultimate answer for RGB enthusiasts!"
"The Crystal Jellyfish is insanely beautiful. The 100% transparent material lets my underglow shine through perfectly, looking like liquid light flowing. What amazed me most is the solid bottom-out—absolutely none of the mushiness I've felt in other clear switches."
— @CrystalKeys, Desk Setup Guru
★★★★★
"1.8mm rapid response, perfect for gaming."
"The 45g pressure is as comfortable as standard Reds, but the 1.8mm actuation and extended stem make it respond much faster with a super snappy rebound. The BOX structure means I can snack without fear of crumb damage. So stress-free!"
— @LinearAddict, Hardcore Gamer
★★★★★
"The dual peak of aesthetics and performance."
"Incredibly smooth. The factory lube is applied very evenly, and paired with my GMK keycaps, it produces a very premium, deep 'Thock' sound. 100M cycle lifespan means this board will practically be a family heirloom."
— @KeyboardBuilder, Custom Keeb Veteran
Premium Quality, Official Support
Free Shipping Over $80
Global stock, dispatched within 24 hours via lightning logistics.30-Day Risk-Free Trial
Not a fan of the feel? Return them within 30 days. Zero stress, zero risk.1-Year Official Warranty
Industrial-grade durability certified for 100 million strokes with laboratory backing.Frequently Asked Questions
Q What is the biggest difference between Crystal Jellyfish and other clear switches?
Many full-transparent switches on the market sacrifice typing feel for aesthetics, resulting in a "mushy" bottom-out and a hollow sound. The Crystal Jellyfish utilizes an extended stem and a long spring, shortening the total travel to 3.3mm. This delivers a highly solid, crisp bottom-out feel and a concentrated, deep "Thock" sound, truly graduating in both looks and performance.
Q Do I need to manually re-lube these switches myself?
No. The Crystal Jellyfish switches are precision-lubricated at the factory on friction points like the stem rails and springs using Kailh's automated equipment. The lube is applied lightly and evenly. You can install them right out of the box to enjoy a buttery-smooth glide, completely free of spring ping or sluggishness from over-lubing.
Q Is the 45gf actuation force suitable for gaming?
Absolutely. 45gf is the classic "golden standard" linear force (identical to the classic Cherry Red). It is perfectly balanced—light enough to keep fingers relaxed during daily typing, yet substantial enough to prevent accidental presses. Combined with the rapid 1.8mm actuation and strong rebound from the long spring, it handles intense, high-frequency esports micro-movements flawlessly.
Q Does the BOX structure actually protect against dust and water?
Yes. The BOX design completely seals the delicate metal leaves and actuation contacts inside a separate chamber. This IP56-rated protection effectively stops desk dust, snack crumbs, and even accidental liquid spills from interfering with the switch's operation, which is why it boasts a legendary 100-million keystroke lifespan with uncompromised feel.
Q My keyboard is 3-pin. Can I use these 5-pin switches?
Yes! The two extra plastic side pins are for added stability on plateless builds. If your PCB only has 3 holes, you can simply use a pair of nail clippers or flush cutters to snip the two extra plastic pins off flush with the base. It will then fit perfectly into almost any MX-style hot-swap board and function without any loss in performance.
