# GAMEMAX Rampage Series 850W PCIe 5.0 80 Plus Gold Certified Fully Modular Power Supply

- Category: Power Supply
- Brand: GAMEMAX
- Model: GX-850 PRO BK
- Part number: GX-850 PRO BK
- Price (US): currently unavailable
- Price last checked: 2026-08-06
- Rating: 4.3/5 from 1792 Amazon reviews
- Warranty: 10 year manufacturer
- Product page: https://buildmypc.net/component-details/power-supply/gamemax-gx-850-pro-bk/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | GAMEMAX |
| Model | GX-850 PRO BK |
| Power | 850 W |
| Efficiency | 80+ Gold |
| Color | Black |
| Form Factor | ATX |

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