Pictures may differ from actual products
Cooler Master X Silent Edge Platinum 850
Fully modular 850W ATX 12V v3.1 power supply - 80PLUS Platinum
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
A quiet and high-performance power supply for high-end builds
The Cooler Master X Silent Edge Platinum 850 pushes the limits of power supplies by offering a fanless 850W solution, combining absolute silence and optimized performance. Designed for demanding users, this power supply is aimed at gamers, IT professionals and high-end system enthusiasts. Thanks to its passive thermal dissipation technology and innovative design, it guarantees exceptional stability and energy efficiency, without compromising reliability.
Innovation and silent operation
The X Silent Edge Platinum 850 stands out for its fanless design, enabling 0 dBA operation and a dust-free environment. Its composite heat pipe system and patented aluminum thermal mold ensure passive heat management, while its active rectifier improves energy conversion efficiency. With 80 Plus Platinum certification, it achieves efficiency above 92% under typical load, thereby reducing energy consumption and extending component lifespan.
Ready for AI and intensive workloads
Designed to meet the needs of modern builds, this power supply supports ATX 3.1 and PCIe 5.1 standards, ensuring optimal compatibility with next-generation graphics cards. The dual-color 12V-2x6 connector (black and purple) makes secure installation easier, while PMBus v1.2 enables real-time monitoring of efficiency, temperature and load. Cooler Master’s MasterCTRL software offers complete visibility into system performance for optimal management.
Key features:
- 850W power with 80Plus Platinum certification (efficiency ≥ 92% under typical load)
- Fanless design for silent operation (0 dBA) and dust-free use
- Composite heat pipe technology and patented aluminum thermal mold for optimal passive dissipation
- ATX 3.1 and PCIe 5.1 compatibility, with a 12V-2x6 connector for high-end graphics cards
- Active rectifier and industrial-grade Infineon chips for increased stability and efficiency
- High-end Japanese capacitors to reduce noise and extend lifespan
- Real-time monitoring via PMBus v1.2 and MasterCTRL software
- Fully modular cabling for a clean installation and better airflow
- Port for optional external fan for greater thermal flexibility
- 15-year manufacturer warranty for long-term peace of mind
Select your criteria
General information |
Product name |
Cooler Master X Silent Edge Platinum 850 |
Brand |
Cooler Master | |
Model |
MPS-8501-AZAP-NBEU | |
Power and Efficiency |
Power |
850 W |
80 PLUS certification |
Yes | |
Cybenetics certification |
No | |
80 PLUS / Cybenetics certification |
80 PLUS Platinum | |
Connectivity |
Modular |
Yes |
Modularity |
100% modular | |
Power connector(s) |
1 X ATX 24 Pin | |
| 1 X +12V (Power supply P8 - 2 x P4) | ||
| 1 X +12V (Power supply P8) | ||
| 4 X PCI Express 6 + 2 Pin | ||
| 12 X Serial ATA power supply | ||
| 4 X Molex (4 Pin) Female | ||
| 1 X PCI Express 16 Pin (12VHPWR) | ||
Configurator |
PSU-CM compatibility |
+12V P4 |
| +12V P8 | ||
| +12V P4 and +12V P4 | ||
| +12V P8 and +12V P4 | ||
| +12V P8 and +12V P8 | ||
Cooling |
Silent |
Yes |
Power supply type (PC) |
Passive (Fanless) | |
Design |
Power format |
ATX/EPS |
Power supply standard |
EPS12V | |
| ATX12V | ||
ATX 3.1 |
Yes | |
Typical use |
Desktop computer | |
Physical characteristics |
Color |
Black |
LED RGB |
No | |
Height |
86 mm | |
Width |
150 mm | |
Length |
180 mm | |
Weight |
3.8 kg | |
Warranties |
Commercial warranty |
Seller 2 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
Cooler Master Europe BV |
Postal address |
Lodewijkstraat 1b Eindhoven, NL, 5652 AC | |
Electronic Address |
consumer_care@coolermaster.eu |
Product referenced on 11 Jun 2026
For the moment, there are no customer reviews.Write a review
Trending now: Modular power supply | Silent power supply | EPS12V power supply | SFX power supply | ATX12V power supply | Active power supply | Desktop computer power supply | Server power supply | LED power supply | 80 PLUS Bronze power supply | 80 PLUS Gold power supply | 80 PLUS Platinum power supply | 80 PLUS Titanium power supply | 550W power supply | 650W power supply | 750W power supply | 850W power supply | 1000W power supply | 1200W power supply