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CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply – Black

CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply – Black

Bottom line: The CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply ($124.99 on Amazon as of 2026-10-06): Cybenetics Gold-certified, up to 91% efficiency for cooler, quieter operation; main trade-off: 750W ceiling limits RTX 5090 plus heavily overclocked CPU builds.

$124.99

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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

  • ✓ Cybenetics Gold-certified, up to 91% efficiency for cooler, quieter operation
  • ✓ Native 12V-2x6 connector powers the latest GPUs directly, no adapter needed
  • ✓ ATX 3.1 compliant, supports PCIe 5.1 and resists transient power spikes
  • ✓ Fully modular cabling, connect only the cables your build needs

Cons

  • ✗ 750W ceiling limits RTX 5090 plus heavily overclocked CPU builds
  • ✗ Gold efficiency tier, not Platinum or Titanium
  • ✗ 140mm FDB fan with no stated zero-RPM fanless mode
  • ✗ Single 12V-2x6 connector, not ideal for multi-GPU rigs

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…

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SpecPicks Verdict

SpecPicks scored CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. 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.

Key Features

  • 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.

Full Specifications

BrandCorsair
ColorBlack
Wattage750 watts
Model NameRM750x
Form FactorATX
Model NumberCP-9020285-NA/AM
Fully ModularReliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.
Connector TypeATX
Cooling MethodAir
Output Wattage750 watts
Item Dimensions2.3 x 3.39 x 5.91 inches
Mfr Part NumberCP-9020285-NA/AM
Number of Items1
ATX 3.1 CompliantCompliant with the ATX 3.1 power standard from Intel, supporting PCIe 5.1 and resisting transient power spikes.
Compatible DevicesMonitor
Power Supply DesignFull Modular
Warranty Description10 Year Manufacturer
Native 12V-2x6 ConnectorEnsures compatibility with the latest graphics cards with a direct GPU to PSU connection – no adapter necessary.
Cybenetics Gold-CertifiedRated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.
Item dimensions L x W x H2.3 x 3.39 x 5.91 inches

Ready to buy?

CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply – Black 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 — $124.99

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

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CORSAIR RM750x ATX 3.1 PCIe 5.1 750W Power Supply – Black
$124.99
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