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Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White, 80 PLUS Gold (CP-9020188-NA)

(0 Reviews)
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$242.76
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(30000 available )
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631 Ratings
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Reviews

  • kyle b

    > 3 day

    No issues after several months of running. Currently only using 300-350 watts with my setup so it is quite over kill. But I like it.

  • Husam

    Greater than one week

    I bought this to replace my old 1000W Coolermaster power supply. Im extremely happy with it since it provides great power and remains quiet even during gaming!

  • Han

    > 3 day

    Working well. Had to buy this one for my msi x570

  • Eden

    > 3 day

    Powers my new pc build perfectly, quite and cool with no issues on installation.

  • cody

    > 3 day

    I haven’t finished building my PC yet but from and aesthetic standpoint? I think this baby is looking good in the Death Star (the name I’ve given my PC HAHA). I’m gonna put a few stormtrooper funko pops inside as well. It’s gonna look sick, totally custom for my VERY FIRST PC build. I’m so excited!!

  • Shrimp

    Greater than one week

    Nvm its good

  • runforestrun

    > 3 day

    works as intended. looks great in my build. its a corsair..my last one is still working fine after 10+ years....would recommend

  • Michael Hembree

    > 3 day

    This power supply got my old computer running again. Much more efficient and quiet than my old power supply. Its been running smoothly for almost a month now.

  • Ugh

    10-06-2025

    Ive done a lot of custom pc builds over the years and Corsair has always been my go-to brand for PSUs. The quality is always top notch, and Ive never had a single one fail or arrive with issues. Fully modular is the way to go to keep everything as neat and tidy and clean looking as possible, though you do pay a little more for that option, its worth it to not clutter your case with excess cabling that will hinder your ideal airflow path.

  • Zach

    > 3 day

    Very reliable, incredibly easy to install into my PC and easy to install cables into, great product

PRISTINE WHITE CASING Now available in an elegant white finish to make your build truly stand out. TUNED FOR LOW NOISE OPERATION A specially set fan curve ensures that, even at full load, fan noise is kept to a minimum. 80 PLUS GOLD CERTIFIED The RMx White can deliver power with over 90% efficiency, lowering energy consumption, noise, temperatures, and your power bill. 100% ALL JAPANESE CAPACITORS By using high-end electrolytic capacitors, the RM850x delivers the unwavering power and long-term reliability you"ve come to expect from a CORSAIR power supply. ZERO RPM FAN MODE At low and medium loads the RM850x"s cooling fan doesn"t spin until you need it, for near-silent operation. FULLY MODULAR, FLAT CABLES Flexible fully modular, flat white cables mean that you only connect the cables your system needs, making clean and tidy builds easier. TEN-YEAR WARRANTY CORSAIR offers a ten-year warranty on all RMx series power supplies, your guarantee of reliable operation that will last across several system builds. If you run into any problems during the installation or use of an RMx power supply, CORSAIR global customer support is ready to help. Manufacturer: Corsair. Manufacturer Part Number: CP-9020188-NA. Brand Name: Corsair. Product Series: RMx. Product Model: RM850x. Product Name: RMx White Series RM850x - 850 Watt 80 PLUS Gold Certified Fully Modular PSU. Product Type: Power Supply. [Technical Information] Specification Compliance: ATX12V/EPS12V. Efficiency: 90%. Number of Fans: 1. Modular: Yes. [Power Description] Number of +12V Rails: 1. Input Voltage: 120 V AC. 230 V AC. Output Voltage: 12 V DC @ 70.80 A. 3.3 V DC @ 25 A. 5 V DC @ 25 A. 5 V DC @ 3 A. 12 V DC @ 800 mA. Output Power: 850 W. [Physical Characteristics] Form Factor: Internal. Height: 3.4". Width: 5.9". Depth: 5.9". [Miscellaneous] Package Contents: RMx White Series RM850x - 85

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