# Cooler Master Blade Master 92 - Sleeve Bearing 92mm PWM Cooling Fan for Computer Cases and CPU Coolers

- Category: Case Cooler
- Brand: Cooler Master
- Model: R4-BM9S-28PK-R0
- Part number: R4-BM9S-28PK-R0
- Price (US): currently unavailable
- Price last checked: 2026-08-06
- Rating: 4.4/5 from 1730 Amazon reviews
- Warranty: 4 years
- Product page: https://buildmypc.net/component-details/case-cooler/cooler-master-r4-bm9s-28pk-r0/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Cooler Master |
| Model | R4-BM9S-28PK-R0 |
| FAN RPM | 2800 RPM |
| Noise Level | 35 dBA |
| Airflow | 54.8 CFM |

## Key Features

- Well-balanced cooling performance with fan airflow, air pressure, and noise
- Anti-vibration rubber pads around the edges to decrease noise
- Distinguished blade shape for airflow improvement.
- Wide PWM fan speed range between 800 - 2800 R.P.M.
- Air Flow (CFM) 15.7 - 54.8 CFM
- Air pressure (mmH2O) 0.35 - 4.27 mH2O
- Noise Level 17 - 35 dBA
- Bearing Type Long Life Sleeve
- Fan Life Expectancy 40,000 hours

---

Source: BuildMyPC (https://buildmypc.net/) — free PC parts compatibility checker. Prices update daily. As an Amazon Associate, BuildMyPC earns from qualifying purchases.