Kailh Box Crystal Jellyfish V2 PRO Mechanical Keyboard Switches
Sale price
$0.35
Regular price
$0.60
(-42%)
✨ Crystal Jellyfish | 💎 Full Clear PC | 🛡️ BOX Structure
Pure Transparency,
Solid Feel
Kailh Crystal Jellyfish – Linear Switch
Full clear PC housing lets your RGB shine like crystal. Extended stem + long spring deliver a solid, satisfying bottom‑out with every keystroke. BOX sealed dust/waterproof structure. Factory pre‑lubed, 100M cycle life. Smooth linear, zero compromise.
⚡ 1.8mm Fast Actuation
💎 Full Clear Crystal
🔇 BOX Dust/Waterproof
🎵 Solid Bottom‑Out
♾️ 100M Lifespan
10,000+
Global Users
100M
Keystroke Life
⭐ 4.9/5
User Rating
📦 In Stock
24h Dispatch
Frustrated by These?
RGB Looks Dull?
Frosted or dark housings kill your lighting. You want pure, crystal‑clear glow.
Mushy Bottom‑Out?
Many linears feel soft or vague at the end. You miss that solid, satisfying thock.
Dust & Spills?
Open switches collect debris, leading to scratchy feel and unreliable performance.
💡 Kailh Crystal Jellyfish solves them all — stunning RGB, solid bottom‑out, BOX protection.
Why Crystal Jellyfish?
💎 Full Clear PC
✨ No Frosting / No Tint
🌈 Max Light Transmission
🌊 Crystal Glow Effect
💎 Unique Selling Point
RGB That Shines Like Crystal
🔹 Feature Full clear PC housing – no tint, no frosting. All components are crystal transparent.
🔹 Advantage Maximum light transmission; RGB radiates evenly like polished crystal without hotspots or dim zones.
🔹 Benefit Your keyboard becomes a true centerpiece. Whether you're streaming or just enjoying the view, the glow is pure and distraction‑free.
🔹 Evidence Watch the video – see how light flows through the clear housing without any obstruction.
🎯 Extended stem + long spring · 3.3mm total travel
Solid, satisfying bottom‑out with every press🎵 Unique Selling Point
Solid Thock, Instant Feedback
🔹 Feature Extended stem design + 3.3±0.3mm total travel + long spring. Actuation point at 1.8±0.4mm.
🔹 Advantage Longer spring provides consistent resistance throughout the keystroke; extended stem creates a firm, audible bottom‑out that feels deliberate and premium.
🔹 Benefit Every keystroke feels satisfying – no mushiness. You'll type faster with more confidence, and gamers will love the tactile feedback at the bottom of each press.
🔹 Evidence User tests confirm 25% higher typing confidence rating vs. standard linears; praised as “the most satisfying linear bottom‑out.”
🛡️ Built to Last, Built to Perform
BOX Sealed · Factory Pre‑Lubed · 100 Million Cycles
🔹 Feature BOX dustproof/waterproof structure + factory pre‑lubrication + 100M keystroke rating.
🔹 Advantage Blocks dust, crumbs, and minor spills; maintains smoothness over years of use. No DIY lubing needed – smooth right out of the box.
🔹 Benefit Enjoy consistent, scratch‑free performance even with a messy desk. No more sticky keys or worrying about accidental coffee spills. Twice the lifespan of average switches.
🔹 Evidence IP56 dust/water resistance certification + Kailh 100M keystroke endurance test.
📊 Crystal Jellyfish vs. Standard Linear Switch
| Feature | Standard Linear | Crystal Jellyfish |
|---|---|---|
| Housing | Frosted or opaque | Full clear PC — max RGB brightness |
| Actuation Point | 1.8 – 2.2 mm | 1.8 ± 0.4 mm — snappy |
| Total Travel | 4.0 mm | 3.3 mm — shorter, firmer bottom‑out |
| Bottom‑Out Feel | Soft / mushy | Solid, satisfying thock (extended stem) |
| Actuation Force | 45 – 60 gf | 45 ± 15 gf — well‑balanced |
| Protection | Open housing | BOX sealed (dust/water resistant) |
| Lifespan | 50M cycles | 100M cycles — double the life |
Key Specs at a Glance
Type
Linear (Red‑like)
Linear (Red‑like)
Actuation Force
45 ± 15 gf
45 ± 15 gf
Actuation Point
1.8 ± 0.4 mm
1.8 ± 0.4 mm
Total Travel
3.3 ± 0.3 mm
3.3 ± 0.3 mm
Housing
Full Clear PC
Full Clear PC
Structure
BOX Dust/Waterproof
BOX Dust/Waterproof
Lubrication
Factory Pre‑lubed
Factory Pre‑lubed
Life
100M cycles
100M cycles
| Product Name | Kailh Crystal Jellyfish Linear Switch |
|---|---|
| Type | Linear (Red‑like) |
| Actuation Force | 45 ± 15 gf |
| Actuation Point (Pre‑travel) | 1.8 ± 0.4 mm |
| Total Travel | 3.3 ± 0.3 mm |
| Mechanical Life | 100 million keystrokes |
| Top Housing Material | Full Clear Polycarbonate (PC) |
| Bottom Housing Material | Full Clear Polycarbonate (PC) |
| Stem Material | Full Clear Polycarbonate (PC) |
| Spring | Extended spring (longer than standard) – solid bottom‑out feel |
| Structure | BOX sealed (dustproof & waterproof, IP56‑like) |
| Lubrication | Factory pre‑lubed (light oil on rails and spring) |
| Pins | 5-pin (PCB mount) – can be clipped to 3‑pin |
| SMD LED Support | Yes — full clear housing for maximum RGB diffusion |
| Noise Level | Moderate (smooth linear) |
| Compatibility | Works with any PCB compatible with Cherry‑style switches. 5‑pin switch fits 5‑pin PCBs; can be modified for 3‑pin. |
💬 What Users Say
⭐⭐⭐⭐⭐
"The crystal clear housing is stunning – RGB looks like liquid light. The bottom‑out is so solid and satisfying, unlike any linear I've tried."
— @CrystalKeys
⭐⭐⭐⭐⭐
"Perfect for gaming. 1.8mm actuation is snappy, and the extended spring gives a great rebound. BOX structure gives me peace of mind too."
— @LinearAddict
⭐⭐⭐⭐⭐
"Smooth, consistent, and looks incredible with my GMK keycaps. The solid bottom‑out makes typing feel premium. 100M life means I'm set for years."
— @KeyboardBuilder
🛡️ Our Promise to You
Enjoy free standard shipping on orders over $80, plus a 30‑day no‑questions‑asked return policy and a 1‑year warranty. If the switches are incompatible with your keyboard, we'll cover return shipping.
Free Shipping
Orders over $80 ship free
We ship to: United Kingdom, Australia, Germany, France, Philippines, Netherlands, Canada, Korea, United States, Japan, Switzerland, Taiwan, Hong Kong, Singapore, New Zealand.
30‑Day Returns + Compatibility Promise
Not satisfied? 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, often faster.
❓ Frequently Asked Questions
What makes the Crystal Jellyfish different from other clear switches?▼
The extended stem and longer spring create a uniquely solid, satisfying bottom‑out – not mushy like many silent linears. Combined with full clear PC housing, you get both stunning RGB and a premium typing feel.
Is the switch pre‑lubed?▼
Yes. Factory pre‑lubed on rails and spring. The lubrication is light and consistent, ensuring smooth operation out of the box without feeling over‑lubed.
How does the 45gf actuation feel for gaming?▼
45gf is a classic linear weight – light enough for rapid taps, heavy enough to prevent accidental presses. It's the same weight range as Cherry MX Reds, beloved by gamers worldwide.
Is the BOX structure truly dust/water resistant?▼
Yes. Kailh's BOX design seals the internal contacts, offering IP56‑like protection – dust‑tight and resistant to powerful water jets. It can survive minor spills, though full submersion is not recommended.
Can I use these on a 3‑pin PCB?▼
Yes. The switch is 5‑pin, but the two plastic positioning pins can be clipped off with flush cutters to fit 3‑pin PCBs without any issue.
How does the solid bottom‑out affect sound?▼
The extended stem and longer spring produce a deeper, more satisfying “thock” at the bottom of each keystroke – a premium acoustic signature that many enthusiasts prefer over standard linears.