# Cooler Master Sleeve Bearing 140mm Silent Fan for Computer Cases and Radiators

- Category: Case Cooler
- Brand: Cooler Master
- Model: Sleeve Bearing
- Part number: R4-S4S-10AK-GP
- Price (US): currently unavailable
- Price last checked: 2026-08-06
- Rating: 4.5/5 from 2305 Amazon reviews
- Warranty: 1 year
- Product page: https://buildmypc.net/component-details/case-cooler/cooler-master-sleeve-bearing-r4-s4s-10ak-gp/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | Sleeve Bearing |
| FAN RPM | 1000 RPM |
| Noise Level | 16 dBA |
| Airflow | 60.9 CFM |

## Key Features

- Recommended for CM 690 and Centurion 590
- 60.9 CFM High airflow to enhance excellent cooling performance
- Silent operation at 16 d-BA for case cooling
- RoHS compliance for protecting the environment

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