CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black
CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black
The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black was $85.69 when we checked it on 2026-08-03. That is about 9 percent below the median of the 7 prices we have recorded for it.
CORSAIR RMx Series Fully Modular Low-Noise Power Supplies deliver quiet, dependable power with Cybenetics Gold efficiency to your PC. Fully modular, ultra-flexible embossed cables make PC builds easy, as you connect only the cables your system requires. Compliant with the ATX 3.1 power standard from Intel®, RMx PSUs have the connections needed to power today’s demanding PC hardware including a native 12V-2x6 connector. 100% Japanese 105°C-rated electrolytic capacitors deliver fantastic electrical performance, while a 140mm FDB fan provides low noise cooling. Backed by a ten-year warranty, RMx PSUs are the gold standard for many years to come.
Editor's note
This is my pick for build quality: all-Japanese 105C capacitors, 80+ Gold, and a 10-year warranty. That capacitor pedigree is the reason I'd trust it for the long haul.
CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black price history
7 weekly checks of our own, from 2026-06-26 to 2026-08-03. How our price tracking works
Lowest
$79.50
Jul 6, 2026
Typical
$94.14
median of 7 weekly checks
Highest
$139.99
Jul 13, 2026
Latest
$85.69
checked Aug 3, 2026
Typical price is the median of the 7 weekly checks we have taken, not the manufacturer list price. Every discount figure on this site is measured against it.
Every observation (7)
| Date | Price | Source |
|---|---|---|
| Jun 26, 2026 | $94.14 | Weekly check |
| Jun 29, 2026 | $129.99 | Weekly check |
| Jul 6, 2026 | $79.50 | Weekly check |
| Jul 13, 2026 | $139.99 | Weekly check |
| Jul 20, 2026 | $139.99 | Weekly check |
| Jul 27, 2026 | $79.50 | Weekly check |
| Aug 3, 2026 | $85.69 | Weekly check |
About this item
- 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.
Details
- Compatible Devices
- Monitor
- Form Factor
- ATX
- Item Dimensions
- 2.3 x 3.39 x 5.91 inches
- Item Weight
- 3.9 pounds
- Model Name
- RMx
- Brand
- Corsair
- Model Number
- CP-9020270-NA
CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black: common questions
Is the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black worth it?
This is my pick for build quality: all-Japanese 105C capacitors, 80+ Gold, and a 10-year warranty. That capacitor pedigree is the reason I'd trust it for the long haul. Its Amazon listing shows 4.7 out of 5 stars across 738 ratings, which is the retailer's figure and not our verdict.
How much does the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black cost?
The CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black was $85.69 when we checked it on 2026-08-03. The median of the 7 prices we have recorded for it is $94.14. Prices change often, so the live retailer link carries the current number.
Is now a good time to buy the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black?
At $85.69 the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black is about 9 percent below the median of the 7 prices we have recorded for it, though we have seen it as low as $79.50 on 2026-07-06.
What is the lowest price the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black has been?
The lowest price on our record for the CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black is $79.50 on 2026-07-06, and the highest is $139.99 on 2026-07-13. That record is 7 weekly checks we took ourselves.
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