Kailh Hush Deep Sea Pro — BOX Silent Switch for Office | Quiet · Dustproof · 80M Cycles
$0.58
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Kailh Silent Series Performance Beast
BOX Deep Sea Hush Pro
The Ultimate Symphony of Abyss-Level Silence and 100M-Cycle Industrial Prowess.
Are you still distracted by the loud "clack" of mechanical keys? Or frustrated by budget silent switches that feel like "stepping in mud"—mushy and sluggish? Kailh proudly introduces the silent flagship of the BOX lineup—the "Deep Sea Hush Pro."
Engineered for professionals who demand a "zero-interference" focus and gamers who crave extreme smoothness. It innovatively combines upgraded high-polymer dampeners with the legendary BOX sealed structure to aggressively suppress noise below 35dB. Paired with a golden 45gf actuation, an independent light guide, and a staggering 100-million cycle lifespan, it delivers a pure, butter-smooth typing experience that feels like sinking into the deep sea.
≤35dB
Noise Level
45gf
Actuation Force
100M
Durability
IP56
Protection Grade
Core Advantages: Reshaping Your Silent Input Perception
We know you love the fluidity of linears but demand absolute silence. The Deep Sea Pro is built to balance "zero noise" with "mechanical integrity."
The Problem: Loud & Disruptive
Standard mechanical switches clack loudly, interrupting focus. Typical silent switches often have incomplete noise cancellation, leaving scratchy friction sounds behind.
The Problem: Mushy & Sticky
To mask sound, many switches use soft pads that make bottoming-out feel like "stepping in mud," leading to a sluggish rebound and significant finger fatigue.
The Problem: Dim & Unreliable
Standard opaque housings block your RGB lighting, while ordinary housings allow dust to enter, leading to failure or annoying double-clicks over time.
✨ Kailh BOX Deep Sea Hush Pro: The ultimate solution offering ≤35dB polymer silence, 45gf butter-smooth flow, and a legendary 100M cycle BOX sealed structure.
Say Goodbye to Bothersome Clack
≤35dB Abyss Silence via Precision Dampening
Traditional Issue
Standard mechanical switches emit sharp clacks that disrupt thought flow. Typical budget silent switches suffer from residual friction noise and incomplete dampening.
The Deep Sea Pro Advantage
Features a newly designed dual-silicone silencing architecture, including thickened sidewall dampeners and specialized high-polymer buffer pads for full-travel coverage.
The Benefit
Make your keyboard "invisible" to ears. This dual-direction design absorbs over 95% of physical impact noise. Even in a library or bedroom at night, you hear only a faint, pure "thud" (≤35dB), restoring total peace.
Say Goodbye to Mushy Bottom-Outs
Snappy 19.5mm Spring & Buttery Flow
Traditional Issue
Most silent switches compromise by feeling soft and vague, like "stepping in mud." The weak rebound ruins the typing rhythm and leads to finger fatigue.
The Deep Sea Pro Advantage
Meticulously tuned with a 45gf golden actuation force, paired with an automated precision factory lube and an upgraded 19.5mm extended snappy spring.
The Benefit
Every keystroke is as smooth as slicing through butter. Precise lubrication eliminates all scratchiness, while the long spring provides strong initial support and a snappy return, completely banishing the "muddy" feel.
Say Goodbye to Dim RGB & Decay
BOX Sealed Safety & 100M Cycle Durability
Traditional Issue
Solid switch housings block RGB light, and standard housings allow dust to enter, leading to premature failure or double-click issues during long-term use.
The Deep Sea Pro Advantage
Features an independent high-transparency Light Guide Pillar to focus RGB light, alongside the signature BOX sealed-chamber technology for core components.
The Benefit
A switch that lasts a lifetime. The BOX structure provides IP56-rated water and dust resistance. The Light Guide Pillar boosts RGB brightness by over 40%, ensuring your minimalist desk setup can coexist with vibrant lighting and a certified 100-million cycle life.
Feature Comparison: The Silent Endgame
| Features | Standard Silent Linear Switch | ✨ BOX Deep Sea Hush Pro |
|---|---|---|
| Noise Level | 38 - 45 dB (Audible friction) | ≤ 35 dB — Whisper-quiet abyss silence |
| Dampening System | Single-layer pads | Next-Gen Polymer — Bi-directional reduction |
| Bottom-out Feel | Often soft, mushy, and sticky | Crisp & solid, snappy rebound, zero mush |
| RGB Brightness | Opaque or frosted, dark spots | Independent Light Guide — +40% brighter |
| Lifespan | ~ 50 Million Cycles | Certified 100 Million Cycles (100M) |
| Protection | Basic dust protection | BOX Structure — IP56 Water & Dust Proof |
Technical Specifications
Hardcore data for keyboard enthusiasts.
🤫Noise Level
≤ 35 dB
🍦Stem
PA12 Self-Lubed
🪶Force
45 gf
🛡️Lifespan
100M Cycles
| Product Name | Kailh BOX Deep Sea Hush Pro (Silent Linear) |
|---|---|
| Switch Type | Silent Linear Mechanical Switch |
| Silencing Structure | Upgraded Polymer Buffer Pads (Bi-directional absorption) |
| Protection Tech | BOX Sealed Chamber (IP56 Waterproof & Dustproof) |
| Housing Material | Full-Clear PC (Top) + Deep Sea Blue Nylon (Base) |
| Stem Material | PA12 (Naturally self-lubricating properties) |
| Actuation Force | 45 ± 10 gf |
| Pre-Travel | 1.8 ± 0.4 mm (Lightning-fast response) |
| Total Travel | 3.6 ± 0.4 mm (Deep and solid) |
| Internal Contacts | Anti-Oxidative Gold (Certified 100M Lifespan) |
| Lubrication | Premium Factory Pre-lubed (Rails, Spring, Leaves) |
| Pin Configuration | 3-Pin (Universal hot-swap socket compatibility) |
Customer Reviews
★★★★★
"The HIFI endgame of silent switches!"
"The sound is unbelievable. It's a deep, solid 'thud' that I've only ever heard on expensive custom hand-lubed linears, but it's dead silent. The 1.8mm pre-travel makes gaming feel zero-latency too."
— @DeepSeaTyper, Custom Keeb Hobbyist
★★★★★
"Finally, no more typing embarrassment at night!"
"I code all night and my family never hears a thing. The factory lube is perfect—absolutely no spring ping. The 45g pressure keeps my fingers fatigue-free even after a 10-hour sprint."
— @SilentDev, Senior Software Engineer
★★★★★
"Graduation for both aesthetics and durability."
"The clear PC top combined with the light guide is stunning. The smoothness of the PA12 stem is truly top-tier. Knowing it's certified for 100 million cycles makes this a forever-switch."
— @RGB_Quiet, Tech Reviewer
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
It features an advanced high-polymer dampening architecture with noise levels tested below 35dB. This is roughly equivalent to a soft whisper. In a typical office, colleagues sitting right next to you will barely hear a thing, making it the perfect choice for noise-sensitive shared spaces.
Absolutely not. Kailh has optimized the density of the dampening pads and paired them with a 19.5mm long recoil spring. Although the clack is gone, the bottom-out remains crisp and solid (non-mushy). It maintains excellent mechanical integrity and a snappy typing rhythm.
No. The Deep Sea Pro series is precision-lubricated at the factory on friction points like the stem rails and springs using professional automated equipment. They reach a peak buttery state straight out of the box, ready to be installed immediately.
Yes! Deep Sea Pro uses a standard 3-pin design and is compatible with almost all MX-style hot-swap mechanical keyboards on the market (including brands like Lofree, IQUNIX, and NuPhy). As long as your keyboard supports standard Cherry-cross style stems, it will fit perfectly.
Significantly. Ordinary switch housings often block bottom-mounted LED light. The independent Light Guide Pillar acts like a fiber optic channel, focusing and diffusing the light directly to the keycap, boosting overall RGB brightness by over 40% while ensuring zero dark zones.
Free Shipping $80+
30-Day Easy Returns
24h Quick Dispatch
1-Year Warranty
Kailh Hush Deep Sea Pro — BOX Silent Switch for Office | Quiet · Dustproof · 80M Cycles
$0.58
Kailh Silent Series Performance Beast
BOX Deep Sea Hush Pro
The Ultimate Symphony of Abyss-Level Silence and 100M-Cycle Industrial Prowess.
Are you still distracted by the loud "clack" of mechanical keys? Or frustrated by budget silent switches that feel like "stepping in mud"—mushy and sluggish? Kailh proudly introduces the silent flagship of the BOX lineup—the "Deep Sea Hush Pro."
Engineered for professionals who demand a "zero-interference" focus and gamers who crave extreme smoothness. It innovatively combines upgraded high-polymer dampeners with the legendary BOX sealed structure to aggressively suppress noise below 35dB. Paired with a golden 45gf actuation, an independent light guide, and a staggering 100-million cycle lifespan, it delivers a pure, butter-smooth typing experience that feels like sinking into the deep sea.
≤35dB
Noise Level
45gf
Actuation Force
100M
Durability
IP56
Protection Grade
Core Advantages: Reshaping Your Silent Input Perception
We know you love the fluidity of linears but demand absolute silence. The Deep Sea Pro is built to balance "zero noise" with "mechanical integrity."
The Problem: Loud & Disruptive
Standard mechanical switches clack loudly, interrupting focus. Typical silent switches often have incomplete noise cancellation, leaving scratchy friction sounds behind.
The Problem: Mushy & Sticky
To mask sound, many switches use soft pads that make bottoming-out feel like "stepping in mud," leading to a sluggish rebound and significant finger fatigue.
The Problem: Dim & Unreliable
Standard opaque housings block your RGB lighting, while ordinary housings allow dust to enter, leading to failure or annoying double-clicks over time.
✨ Kailh BOX Deep Sea Hush Pro: The ultimate solution offering ≤35dB polymer silence, 45gf butter-smooth flow, and a legendary 100M cycle BOX sealed structure.
Say Goodbye to Bothersome Clack
≤35dB Abyss Silence via Precision Dampening
Traditional Issue
Standard mechanical switches emit sharp clacks that disrupt thought flow. Typical budget silent switches suffer from residual friction noise and incomplete dampening.
The Deep Sea Pro Advantage
Features a newly designed dual-silicone silencing architecture, including thickened sidewall dampeners and specialized high-polymer buffer pads for full-travel coverage.
The Benefit
Make your keyboard "invisible" to ears. This dual-direction design absorbs over 95% of physical impact noise. Even in a library or bedroom at night, you hear only a faint, pure "thud" (≤35dB), restoring total peace.
Say Goodbye to Mushy Bottom-Outs
Snappy 19.5mm Spring & Buttery Flow
Traditional Issue
Most silent switches compromise by feeling soft and vague, like "stepping in mud." The weak rebound ruins the typing rhythm and leads to finger fatigue.
The Deep Sea Pro Advantage
Meticulously tuned with a 45gf golden actuation force, paired with an automated precision factory lube and an upgraded 19.5mm extended snappy spring.
The Benefit
Every keystroke is as smooth as slicing through butter. Precise lubrication eliminates all scratchiness, while the long spring provides strong initial support and a snappy return, completely banishing the "muddy" feel.
Say Goodbye to Dim RGB & Decay
BOX Sealed Safety & 100M Cycle Durability
Traditional Issue
Solid switch housings block RGB light, and standard housings allow dust to enter, leading to premature failure or double-click issues during long-term use.
The Deep Sea Pro Advantage
Features an independent high-transparency Light Guide Pillar to focus RGB light, alongside the signature BOX sealed-chamber technology for core components.
The Benefit
A switch that lasts a lifetime. The BOX structure provides IP56-rated water and dust resistance. The Light Guide Pillar boosts RGB brightness by over 40%, ensuring your minimalist desk setup can coexist with vibrant lighting and a certified 100-million cycle life.
Feature Comparison: The Silent Endgame
| Features | Standard Silent Linear Switch | ✨ BOX Deep Sea Hush Pro |
|---|---|---|
| Noise Level | 38 - 45 dB (Audible friction) | ≤ 35 dB — Whisper-quiet abyss silence |
| Dampening System | Single-layer pads | Next-Gen Polymer — Bi-directional reduction |
| Bottom-out Feel | Often soft, mushy, and sticky | Crisp & solid, snappy rebound, zero mush |
| RGB Brightness | Opaque or frosted, dark spots | Independent Light Guide — +40% brighter |
| Lifespan | ~ 50 Million Cycles | Certified 100 Million Cycles (100M) |
| Protection | Basic dust protection | BOX Structure — IP56 Water & Dust Proof |
Technical Specifications
Hardcore data for keyboard enthusiasts.
🤫Noise Level
≤ 35 dB
🍦Stem
PA12 Self-Lubed
🪶Force
45 gf
🛡️Lifespan
100M Cycles
| Product Name | Kailh BOX Deep Sea Hush Pro (Silent Linear) |
|---|---|
| Switch Type | Silent Linear Mechanical Switch |
| Silencing Structure | Upgraded Polymer Buffer Pads (Bi-directional absorption) |
| Protection Tech | BOX Sealed Chamber (IP56 Waterproof & Dustproof) |
| Housing Material | Full-Clear PC (Top) + Deep Sea Blue Nylon (Base) |
| Stem Material | PA12 (Naturally self-lubricating properties) |
| Actuation Force | 45 ± 10 gf |
| Pre-Travel | 1.8 ± 0.4 mm (Lightning-fast response) |
| Total Travel | 3.6 ± 0.4 mm (Deep and solid) |
| Internal Contacts | Anti-Oxidative Gold (Certified 100M Lifespan) |
| Lubrication | Premium Factory Pre-lubed (Rails, Spring, Leaves) |
| Pin Configuration | 3-Pin (Universal hot-swap socket compatibility) |
Customer Reviews
★★★★★
"The HIFI endgame of silent switches!"
"The sound is unbelievable. It's a deep, solid 'thud' that I've only ever heard on expensive custom hand-lubed linears, but it's dead silent. The 1.8mm pre-travel makes gaming feel zero-latency too."
— @DeepSeaTyper, Custom Keeb Hobbyist
★★★★★
"Finally, no more typing embarrassment at night!"
"I code all night and my family never hears a thing. The factory lube is perfect—absolutely no spring ping. The 45g pressure keeps my fingers fatigue-free even after a 10-hour sprint."
— @SilentDev, Senior Software Engineer
★★★★★
"Graduation for both aesthetics and durability."
"The clear PC top combined with the light guide is stunning. The smoothness of the PA12 stem is truly top-tier. Knowing it's certified for 100 million cycles makes this a forever-switch."
— @RGB_Quiet, Tech Reviewer
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
It features an advanced high-polymer dampening architecture with noise levels tested below 35dB. This is roughly equivalent to a soft whisper. In a typical office, colleagues sitting right next to you will barely hear a thing, making it the perfect choice for noise-sensitive shared spaces.
Absolutely not. Kailh has optimized the density of the dampening pads and paired them with a 19.5mm long recoil spring. Although the clack is gone, the bottom-out remains crisp and solid (non-mushy). It maintains excellent mechanical integrity and a snappy typing rhythm.
No. The Deep Sea Pro series is precision-lubricated at the factory on friction points like the stem rails and springs using professional automated equipment. They reach a peak buttery state straight out of the box, ready to be installed immediately.
Yes! Deep Sea Pro uses a standard 3-pin design and is compatible with almost all MX-style hot-swap mechanical keyboards on the market (including brands like Lofree, IQUNIX, and NuPhy). As long as your keyboard supports standard Cherry-cross style stems, it will fit perfectly.
Significantly. Ordinary switch housings often block bottom-mounted LED light. The independent Light Guide Pillar acts like a fiber optic channel, focusing and diffusing the light directly to the keycap, boosting overall RGB brightness by over 40% while ensuring zero dark zones.
