---
product_id: 114045571
title: "Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth)"
brand: "captain o-ring"
price: "S$48"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/114045571-captain-o-ring-llc-oring-keyboard-switch-dampeners-blue-40a
store_origin: SG
region: Singapore
---

# significant sound dampening 0.4mm travel reduction reduces finger fatigue Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth)

**Brand:** captain o-ring
**Price:** S$48
**Availability:** ✅ In Stock

## Summary

> ⌨️🔇 Type Smooth, Work Quiet, Feel Fresh

## Quick Answers

- **What is this?** Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth) by captain o-ring
- **How much does it cost?** S$48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/114045571-captain-o-ring-llc-oring-keyboard-switch-dampeners-blue-40a)

## Best For

- captain o-ring enthusiasts

## Why This Product

- Trusted captain o-ring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Upgrade Your Desk Vibe:** Transform your typing experience with professional-grade dampeners
- • **Whisper-Quiet Workflow:** Dramatically lowers keyboard noise for distraction-free zones
- • **Complete Kit for Keyboard Zen:** Includes 135 O-Rings plus a premium microfiber cleaning cloth
- • **Built to Last, Built for Comfort:** Durable EPDM rubber resists cracking and tearing over time
- • **Softer Keystrokes, Sharper Focus:** 0.4mm travel cut for cushioned, fatigue-free typing

## Overview

Captain O-Ring LLC’s Blue Keyboard Switch Dampeners reduce key travel by 0.4mm to soften keystrokes and minimize finger fatigue. Crafted from high-quality EPDM rubber, these 135-piece dampeners significantly cut down keyboard noise, enhancing focus in any workspace. The set also includes a microfiber cloth for easy keyboard maintenance, making it a must-have upgrade for professionals seeking a quieter, more comfortable typing experience.

## Description

Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth)

## Features

- 0.4mm travel reduction for a softer landing and better shock absorption
- Significantly reduces keyboard sound level
- Minimizes finger fatigue by shortening travel and lessening impact
- High quality EPDM rubber resists cracking and tearing
- Includes 135 O-Rings & Captain O-Ring Screen Cleaning Microfiber Cloth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Captain O-Ring |
| Product Dimensions | 17.78 x 9.14 x 1.27 cm; 4.54 g |
| Item model number | BC72657 |
| Manufacturer | Captain O-Ring LLC |
| Colour | Black |
| Power Source | Wireless Power |
| Are Batteries Included | No |
| Item Weight | 4.54 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** Captain O-Ring
- **Compatible devices:** Keyboard
- **Connectivity technology:** USB
- **Keyboard description:** Wireless
- **Recommended uses for product:** All
- **Special feature:** Travel
- **Colour:** Black
- **Style:** Modern
- **Material:** Rubber
- **Included components:** 135 O-Rings, Captain O-Ring Screen Cleaning Microfiber Cloth

## Images

![Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth) - Image 1](https://m.media-amazon.com/images/I/71QJABh8nWL.jpg)
![Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth) - Image 2](https://m.media-amazon.com/images/I/813N8C8diHL.jpg)
![Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth) - Image 3](https://m.media-amazon.com/images/I/51RGXXJdIBL.jpg)
![Captain O-Ring LLC Oring Keyboard Switch Dampeners Blue [40A-R 0.4Mm] Reduction (135 Pcs W/Screen Cloth) - Image 4](https://m.media-amazon.com/images/I/715KP6EOMBL.jpg)

## Questions & Answers

**Q: Does 0.4mm in the specs mean 4 millimeters thick? 0.4 millimeters would be very very thin (i.e. less than half a millimeter).**
A: Hello.  The 0.4mm is not representative of the size of the o-rings, but rather the reduction in key-stroke travel with these installed.  You are correct, the o-rings are thicker than 0.4mm :-).  They are actually about 1.75mm thick.

**Q: So do you put these on the switch or the keycaps?**
A: you put this on the keycap, on the post that is attached to the switch. As it descends into the switch it hits the switch face. Slightly shortens the travels and dampens the impact.

**Q: Does it come with a cap remover?**
A: Hello, this kit does not include a cap remover. Most keyboard keys can be easily removed from the board with anything flat/thin enough to get under the keys and lift.

**Q: Will these work with gateron switches?**
A: These should work with any removible mechanical key caps because they are applied to the stem of the key cap, not any part of the switch itself. There are great tutorial videos online if you Google how to apply o rings to key caps.
Best of luck!

## Frequently Bought Together

- Captain O-Ring - Rubber Oring Keyboard Switch Dampeners Blue [40A-R 0.4mm Reduction] (135 pcs w/Screen Cloth)
- Captain O-Ring - Rubber Oring Keyboard Switch Dampeners/Sound Reducers Red [40A-L 0.2mm Reduction] (135 pcs w/Screen Cloth)
- Keycap Puller Stainless Steel Key Removal Tool Keycaps Remover for Mechanical Keyboard Removing Fixing Tools

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*