An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. The Corsair AX850 power supply offers 80 PLUS GOLD levels of energy-efficiency, and the power needed for high-end, multi-GPU gaming PCs. It is built to the highest quality standards to provide enthusiasts with the highest-quality 850W PSU available. A Fully Modular Cabling System All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling - the cables stay in place and connect to your new fully-modular Corsair power supply. Incredible Efficiency With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month.
An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. The Corsair AX850 power supply offers 80 PLUS GOLD levels of energy-efficiency, and the power needed for high-end, multi-GPU gaming PCs. It is built to the highest quality standards to provide enthusiasts with the highest-quality 850W PSU available. A Fully Modular Cabling System All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling - the cables stay in place and connect to your new fully-modular Corsair power supply. Incredible Efficiency With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month.
Corsair RM850 2021 850W 80 Plus Gold Modular Power Supply
An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. The Corsair AX850 power supply offers 80 PLUS GOLD levels of energy-efficiency, and the power needed for high-end, multi-GPU gaming PCs. It is built to the highest quality standards to provide enthusiasts with the highest-quality 850W PSU available. A Fully Modular Cabling System All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling - the cables stay in place and connect to your new fully-modular Corsair power supply. Incredible Efficiency With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month.
An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. High-quality Japanese capacitors provide uncompromised performance and reliability. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. The Corsair AX850 power supply offers 80 PLUS GOLD levels of energy-efficiency, and the power needed for high-end, multi-GPU gaming PCs. It is built to the highest quality standards to provide enthusiasts with the highest-quality 850W PSU available. A Fully Modular Cabling System All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling - the cables stay in place and connect to your new fully-modular Corsair power supply. Incredible Efficiency With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month.
in 2 offers
The lowest price for Corsair RM850 2021 850W 80 Plus Gold Modular Power Supply right now is $155.73 at Alibaba.com, compared across 2 retailers.
The all-time low was $154.78 on 28 Oct 2026 — today's price is 1% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 09:55:55
Corsair Professional Series AX 850 Watt ATX/EPS Modular 80 Plus Gold (AX850)
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Wholesale CORSAIR AX850 850W CORSAIR 850W 850W Full Modular Power upply,1 Box
Delivery $45.96
| Brand | CORSAIR |
| Form Factor | ATX, EPS |
| Modular | Yes |
| 80 PLUS Rating | 80 PLUS Gold |
| Power Output | 850 watts |
Corsair Professional Series AX 850 Watt ATX/EPS Modular 80 Plus Gold (AX850)
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Wholesale CORSAIR AX850 850W CORSAIR 850W 850W Full Modular Power upply,1 Box
Delivery $45.96
| Brand | CORSAIR |
| Form Factor | ATX, EPS |
| Modular | Yes |
| 80 PLUS Rating | 80 PLUS Gold |
| Power Output | 850 watts |
