# be quiet! Dark Power 12 850W, 80 PLUS Titanium efficiency, power supply, ATX, modular, virtually inaudible Silent Wings fan

- Category: Power Supply
- Brand: be quiet!
- Model: BN657
- Part number: BN657
- Price (US): $287.56
- Price last checked: 2026-08-05
- Rating: 4.7/5 from 278 Amazon reviews
- Warranty: 1 year
- Product page: https://buildmypc.net/component-details/power-supply/be-quiet-bn657/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | be quiet! |
| Model | BN657 |
| Power | 850 W |
| Efficiency | 80+ Titanium |
| Color | Black |
| Form Factor | ATX |

## Key Features

- 80 PLUS Titanium efficiency (up to 95.6%)
- Patented frameless Silent Wings fan for virtually inaudible operation
- Revolutionary full mesh PSU front with redesigned funnel shape air inlet upholds the high air circulation abilities
- Overclocking key switches between four 12V rails and one massive 12V rail
- Modular cable management for highest convenience

---

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