An advanced power supply unit that stands out due to its large 850 W power reserve, high efficiency, 80+ Gold certification, and support for modern power supply standards. The model is part of the 2024 Corsair RM series and is positioned by the manufacturer as an advanced power supply solution for gaming builds and work PCs equipped with powerful processors and next-generation video cards.
In case of a shortage or excess of initial power, this series also includes 750 and 1000 W models. The key feature of the Corsair RMx RM850x is support for the ATX 3.1 and PCI-E 5.1 power supply standards, which were announced in 2024. As befits an advanced device, the PSU is built on the basis of modern circuitry, the key elements of which are heat-resistant solid-state capacitors of Japanese manufacture with a thermal rating of 105 ° C.
According to the manufacturer, even with a constant maximum load on the power line, the heating of the internal components does not exceed 50 °C. The official warranty period is 10 years, which puts this model on par with more advanced platinum and titanium power supplies. The power supply is equipped with a fully modular cable connection system. An enlarged 140 mm fan on a hydrodynamic bearing is used for cooling. The user can independently adjust the fan speed and noise level using a mechanical regulator located on the rear panel.
The information in the model description is for reference purposes. Always clarify the specifications and configuration of the product with the online store manager before purchasing. Catalog Corsair 2025 - new arrivals, bestsellers, and the most relevant models Corsair.
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only need to connect the cabl... morees your system needs
Cybenetics Gold certified: Efficiency up to 91%, resulting in lower power consumption, less noise and cooler temperatures
ATX 3.1 Compliant: Meets Intel's ATX 3.1 power standard, supporting PCIe 5.1 and withstanding transient power spikes
Native 12V-2x6 connector: Ensures compatibility with the latest graphics cards through a direct connection between the GPU and the power supply - no adapters required
Embossed cables with low profile combs: The elegant and ultra-flexible embossed cables look great and make it easy to install and connect the RMx
- Keep it clean - this Corsair PSU is fully modular, so you can connect just the cables you need - The 850 W power output is... moreenough for high-end gaming setups - It supports PCIe 5.1, so it's ready to power the most powerful components - Industry graded 105°C-rated capacitors mean consistent and dependable electrical performance - With Cybenetics Gold rating you can expect lower power consumption, less noise and cooler temperatures - The 140 mm fan with a fluid dynamic bearing and a Zero RPM mode, so you probably won't hear it at all - It keeps your PC safe with a whole bunch of protection standards so you can rest easy
850W Corsair RM850x Modular 80 Plus Gold PSU CP-9020270-UK
The CORSAIR RMx Series has been powering top-performing PCs for years. These fully modular lownoise PSUs are 80 PLUS Gold-cer... moretified for up to 90% efficiency and Cybenetics Platinum-certified for lower power consumption, less noise, and cooler temperatures. Fully modular cables make PC builds easy, as you connect only the cables your system requires. RMx PSUs are compliant with the ATX 3.1 power standard from Intel®, supporting the PCIe Gen 5 platform. A native 12V-2x6 connector ensures compatibility with the latest graphics cards with a direct GPU to PSU connection, without the need for an adapter. With 100% Japanese 105°C-rated electrolytic capacitors, the electric performance of the RMx Series is outstanding. Featuring resonant LLC topology with DC-to-DC conversion, you can be confident that your PSU provides clean, consistent power while also enabling the use of more energy-efficient sleep states such as Modern Standby. Keep the noise down thanks to a 140mm proprietary FDB fan, using a specially calculated fan curve for low noise operation even at full load. A built-in fan speed adjustment knob on the back of the PSU also gives you quick manual control. At low loads, Zero RPM fan mode support results in near-silent operation. With a 50°C maximum operating temperature, an RMx PSU can handle all the stress you can throw at it. A six-layer modular PCB provides improved voltage stability and heat dissipation. Backed by a ten-year warranty, the CORSAIR RMx Series will be the gold standard for many years to come.
Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black CP-9020270-UK
CORSAIR RMx Series RM850x ATX Power Supply – Fully Modular – ATX 3.1 – PCIe 5.1 –... moreCybenetics Gold – Low-Noise – Japanese Capacitors – 850 Watts – Ten-Year Warranty
- Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling so you only have to connect the cables your system needs.
- Cybenetics Gold-Certified: Rated for up to 91% efficiency resulting in lower power consumption less noise and cooler temperatures.
- ATX 3.1 Compliant: ;Compliant with the ATX 3.1 power standard from Intel supporting PCIe 5.1 and resisting transient power spikes.
- Native 12V-2x6 Connector: ;Ensures compatibility with the latest graphics cards with a direct GPU to PSU connection - no adapter necessary.
- Embossed Cables with Low-Profile Combs: Sleek ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.
- Low Noise with 140mm Fan: A 140mm FDB fan with a specially calculated fan curve ensures low-noise operation even at full load with a fan speed adjustment knob on the back for quick manual control.
- 100% Japanese Electrolytic Capacitors: Delivers steady reliable power and dependable electrical performance with 105°C-rated Japanese capacitors.
- 50°C Maximum Operating Temperature: For reliable power even under high-stress conditions.
- Zero RPM Fan Mode: For near-silent operation at lower loads.
- Ten-Year Warranty: Your guarantee of reliable operation for peace of mind through multiple builds.
Quiet Dependable Efficient Our best-selling PSU updated. This fully modular low noise Cybenetics Gold-certified power supply is ATX 3.1 compliant and ideal for delivering dependable power to today's top-performing PCs. 50°C Continuous Operating Temperature Ensures reliable power for your PC even under high-stress conditions.
105°C-Rated Capacitors Built with 100% Industrial-grade 105°C-rated Japanese electrolytic capacitors for unwavering power and reliability.
ATX 3.1 Certified Be confident your PSU supports the latest sleep and hibernate modes and modern CPU and GPU requirements. ATX 3.1 compliance ensures full compatibility with modern components and power states.
Fully Modular Connectors Connect only what you need using sleek embossed cables with low-profile combs to make installations a breeze.
140mm Low-Noise Fan A fluid dynamic bearing fan with magnetic dome structure keeps noise to a minimum with Zero RPM mode to eliminate fan noise completely at low to medium
