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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 (Renewed)
Amazon Renewed

Amazon Renewed CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply

Bottom line: The Amazon Renewed CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category, priced around $85.69 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$85.69

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Buy on Amazon — $85.69 Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Backed by Amazon Renewed's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

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…

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SpecPicks Verdict

SpecPicks scored Amazon Renewed CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Amazon Renewed's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Full Specifications

BrandCorsair
Wattage850 watts
Model NameRMx
Unit Count1 Count
Form FactorATX
Connector TypeATX
Cooling MethodAir
Number of Fans1
Output Wattage850 watts
Item Dimensions2.3 x 3.39 x 5.91 inches
Mfr Part NumberCP-9020270-NA-cr
Compatible DevicesComputer, Motherboard, Graphics Card, Processor, Computer Case
Warranty Description90 days limited warranty
Maximum Input Voltage264 volts_of_alternating_current
Minimum Input Voltage100 volts_of_alternating_current
Item dimensions L x W x H2.3 x 3.39 x 5.91 inches
System Bus Connector TypeATX
Connector Type Used on CableATX
EU Spare Part Availability Duration10 years
Full listing titleCORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black (Renewed)

Ready to buy?

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 (Renewed) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $85.69

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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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 (Renewed)
$85.69
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