CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics
Reviewed 23 August 2026 · price checked live
Check price on Amazon →Overview
Corsair RM850e (2025) Fully Modular Low-Noise ATX Power is one of the 44 components & replacement parts products in our catalogue, tracked on rating, review volume and live price. The maker describes it as follows: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs. Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.6 out of 5 from 693 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Corsair
- Amazon rating
- 4.6 / 5 from 693 ratings
- vs Components & Replacement Parts
- level with the category median of 4.6
- Rank in category
- 19 of 44 rated components & replacement parts we track
- Price position
- Mid-priced (category spans £4.99 to £625)
- How proven
- Moderate review volume
How it compares in Components & Replacement Parts
Across the 44 rated components & replacement parts products we track, the typical score is 4.6 out of 5. This one sits at 4.6, which is around the middle of the category. Ratings alone will not separate it from its rivals here, so price and the specifics below matter more than the star count.
It carries 693 ratings against a category median of 2,596. That is enough of a base to take the score seriously without treating it as settled.
On price it sits in the middle third of a category running from £4.99 to £625, where the midpoint is about £39.99. That is the part of the range where most sensible buys sit, neither cutting corners nor paying for the name.
Worked out from the 44 components & replacement parts products in our catalogue, not from the brand's own claims. How we rank →
Key features
- Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting PCIe 5.1 platform withstands 2x transient power excursions from the GPU.
- Keeps Quiet: A 120mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
- 105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance.
- Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
