Kailh Deep Sea Silent Pro Box Islet is a silent linear mechanical switch from Kailh released in July 2024 with a 45 gf operating force and 1.8 mm pre-travel, 3.6 mm total travel, and a manufacturer rating of At least 100 million keystrokes.
Three focused profiles from published switch specifications. No overall score is generated because feel and use case are personal.
Measures actuation, travel, and force. Shorter, lighter movement favors speed. Advanced input features add capability.
Measures bump or click intensity. It uses feel type and tactile-force rise. Higher scores mean stronger feedback.
Measures published lifespan evidence. It uses documented construction details. It does not predict real-world reliability.
Kailh Deep Sea Silent Pro Box Islet
Kailh
Kailh
Silent Pro Box
Islet
July 2024
Available
Mechanical
Silent Linear
MX
Plate Mount
45 gf
1.80 mm
3.60 mm
No
No
No
No
Silent Linear
Box stem
Yes
Low
Silent
PC
Nylon
POM
Extended spring
Transparent
Factory pre-lubed to reduce spring scratch and hitch
Yes
Yes
At least 100 M cycles
3
Yes
Yes
Yes
No
Composite gold
Editor's Note: If you want a switch that is truly quiet without feeling like you're typing on wet sponges, the Deep Sea Islet hits the sweet spot. Kailh placed small rubber dampeners on the stem rails and base to silence both the downstroke and the rebound clack. The extended spring gives each keypress a snappy, even return, while the boxed stem stops keycaps from wobbling around. Real customer reviews consistently praise the smooth factory lube and silence, making it an easy pick for shared office desks or streaming without mic noise.
A three-axis view of compatible-keyboard input capability, tactile profile, and published durability evidence. Missing evidence remains unavailable rather than being scored as zero.
Gaming capability, tactile intensity, and build durability (0 to 100)
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The Kailh Deep Sea Silent Pro Box Islet is a Mechanical switch from Kailh with a Silent Linear feel, so its keypress character is primarily defined by that mechanism and feedback style.
The Kailh Deep Sea Silent Pro Box Islet has an operating force of 45 gf. That sits in the common middle range for everyday typing and gaming.
The Kailh Deep Sea Silent Pro Box Islet has a pre-travel of 1.80 mm. Shorter actuation distances usually feel quicker because the key registers earlier in the press.
The Kailh Deep Sea Silent Pro Box Islet has a total travel distance of 3.60 mm. Total travel describes the full stroke from rest to bottom-out.
The Kailh Deep Sea Silent Pro Box Islet is listed as 3-pin, MX keycap compatibility is yes, and hot-swap compatibility is yes. Always match the switch pins and keyboard PCB/socket before buying.
Yes. The Kailh Deep Sea Silent Pro Box Islet is listed as factory lubed. Factory lubrication can affect out-of-box smoothness and sound, but its effect can vary with the keyboard build and keycaps.
Available sound-related specs for the Kailh Deep Sea Silent Pro Box Islet include sound profile: Silent, sound level: Low. Case, plate, keycaps, and desk mat can still change the final keyboard sound.
The Kailh Deep Sea Silent Pro Box Islet is rated for At least 100 M cycles. Lifespan ratings are lab-cycle estimates, so real-world durability can also depend on build quality and usage.
The Kailh Deep Sea Silent Pro Box Islet lists top housing: PC, bottom housing: Nylon, stem: POM, contact: Composite gold. These parts influence feel, sound, wobble, and long-term switch consistency.
Disclaimer: Specs, pricing, and benchmarks are sourced from official manufacturer data and verified test results. While we strive for precision, product details and pricing may change. Comparigon may earn an affiliate commission on qualifying purchases.