Corsair RMx ATX 3.1 CP-9020270-EU
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An advanced-level power supply unit that stands out due to its high power reserve of 850W, 80+ Gold certification, and support for ATX 3.1 and PCIe 5.1 power standards, which were announced in 2024. The PSU is built on modern circuitry, with key components being thermally resistant Japanese-made solid capacitors with a thermal rating of 105°C. According to the manufacturer, even under constant maximum load on the power line, the internal component temperature does not exceed 50°C.
The official warranty period is 10 years, placing this model in line with more advanced platinum and titanium level power supplies. The power supply is equipped with a fully modular cable connection system. For cooling, a large 140 mm fan on a hydrodynamic bearing is used. Users can independently adjust the fan speed and noise level using a mechanical controller located on the rear panel.
E-Catalog UK editor, PSUs
Valerii Lenko, edited 30.09.2025
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 2026 - new arrivals, bestsellers, and the most relevant models Corsair.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Corsair 2026 - new arrivals, bestsellers, and the most relevant models Corsair.
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| £89.99 |  | ||||
| £109.00 |  | ||||
CORSAIR RM850x Modular ATX PSU - 850 W CP-9020270-UK | £109.98 |  | |||
CORSAIR RM850x Modular ATX PSU - 850 W | £109.99 |  | |||
850W Corsair RM850x Modular 80 Plus Gold PSU CP-9020270-UK | £109.99 |  | |||
12 more offer(s)
Series Corsair RM (modular, 80+ Gold)Compare using chart →
850 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 3 x 16 pin, SATA 8, Molex 3, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 2 x 6+2 pin, 3 x 16 pin, SATA 8, Molex 3, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 3 x 16 pin, SATA 12, Molex 6, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8+8 pin, 4 x 6+2 pin, SATA 14, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
You're almost there Doesn't work as desired 12v 6x2  Evgeniy Kuchinskiy: use Corsair CP-9020270-EU few months |
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Corsair RMx ATX 3.1 configurations
| Price for Corsair RMx ATX 3.1 | ||||
|---|---|---|---|---|
 | Corsair RMx ATX 3.1 CP-9020285-EU | from £99.95 | 5 offers | |
 | Corsair RMx ATX 3.1 CP-9020270-EU | from £89.99 | 18 offers | |
 | Corsair RMx ATX 3.1 CP-9020271-EU | from £129.98 | 10 offers | |
We recommendCompare using chart →
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 2 x 6+2 pin, 3 x 16 pin, SATA 8, Molex 3, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 8 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 8, Molex 1, ATX, modular, certificate 80+ Gold, warranty 7 years
1000 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 7 years
1000 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 10, Molex 2, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 3, ATX, modular, certificate 80+ Gold, warranty 8 years
1050 W, 24+8+8(4+4) pin, 6 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 3, ATX, modular, mining, certificate 80+ Gold, warranty 5 years
1000 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 10, Molex 2, ATX, modular, certificate 80+ Platinum, warranty 5 years
1000 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 9, Molex 4, ATX, modular, semi-passive СО, certificate 80+ Gold, warranty 10 years
I decided to try the included adapter that came with the video card, and everything started working)))