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  • Corsair RM850x is a black and silver computer power supply unit. It is designed to provide power to a motherboard and its components, including SATA/PATA drives and PCIe slots. The unit has a 12V output and is capable of delivering up to 850 watts of power. The Corsair RM850x is a reliable and high-quality power supply for a wide range of computer systems.
  • Corsair RMx Series Power Supplies: Our Best-Selling Power Supplies, Updated. Fully Modular, Low Noise, and Cybenetics Gold-Certified for Reliable Power.
  • ATX 3.1 Certified: ATX 3.1 and PCle 5.1 compliant, ideal for delivering dependable power to current and future top-performing PCs. 100% Japanese 105C Electrolytic Capacitors. ATX 3.1 PCle 5.1 with 12V-2x6.
  • Fully Modular Connectors: SATA/PATA SATA PATA OSI338v0 Connect only what you need using sleek embossed cables with low-profile combs to make installations a breeze. 1x CPU/PCIe / CPU PCIe 12V-2x6 Native 12V-2x6 GPU cable included for use with modern graphics cards such as the NVIDIA GeForce RTX 40 Series.
  • The image features a 140mm low-noise fan with a fluid dynamic bearing and magnetic dome structure that keeps noise to a minimum. The fan also has a Zero RPM mode, which eliminates fan noise completely at low to medium loads.
  • Get more air through the PSU or override the Zero RPM Mode and low-noise profile of the RMx series with our manual fan override knob, increasing fan speed and airflow.
  • FULLY MODULAR CABLING Connect only the cables you need. 1x ATX (24-pin) 2x ATX 12V (4+4-pin) 3x PCIe (6+2-pin) 1x 12V-2x6 (12+4-pin) 2x 4 SATA (Straight) 1x 3 PATA (4-pin)
  • WORLD-CLASS 24/7 CUSTOMER SUPPORT O COUNTRY LOCAL CORSAIR 10 GUARANTED REGULATIONS YEARS ARE APPLICABLE WORLD-CLASS SUPPORT Our award-winning service means you can enjoy your gear worry-free.
  • CORSAIR X RM850x
  • CORSAIR RM850x
  • The text on the image reads "Corsair RM850x / CPU PCle a CUNDIGAT - NIONTO HYSOO SATA/PATA / SATA, AIL PATA nv ONLY MOTHERBOARD 12V-2x6."
  • Alt View 21. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • Alt View 22. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • Alt View 23. CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black.
  • The text on the image reads: "MOTHERBOARD 12V-2x6 CPU PU/ PCle / SATA/PATA / PATA DESIGNED FOR USE WITH GENUINE CORSAIR TYPE 4 CABLE SETS ONLY."
  • Corsair RM850x
  • The image shows a variety of Corsair products, including a box and several cords. There are a total of 12 cords, with some of them being black and white. The cords are arranged in a row, and they are all connected to a single box. The box is placed in the middle of the scene, surrounded by the cords. The arrangement suggests that these cords are part of a larger electronic system or setup.

CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

Model:
CP-9020270-NA
SKU:
11066305
Your price for this item is $140.49
The comparable value price is $169.99

Customer reviews

Rating 4.8 out of 5 stars with 268 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

95%
would recommend
to a friend
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 9 Showing 161-180 of 268 reviews

  • Great psu

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Looks great, has an adjustment knob for the fan speed on the back, so it can either be silent at idle or keeping it as cool as possible if your setup needs it

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Solid

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The cables aren't bundled together. This can actually make cable management easier when space is limited as you have more flexibility. Otherwise, it's a power supply

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Great Product

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to install, comes with every wire needed cool feature to turn up rpms

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • I recommend

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good PSU... bit pricey but overall worth the quality

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Winner

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy install and runs my new 50 series without burning my house down. So what more can you ask for.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Good PSU

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    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to set up and useful for cable management. Using a 5070 ti and a 9800x3d with this.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Great PSU

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great PSU. Has all the connections you need and is quiet. you can change the sound noise which makes it great.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • It works

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    using for an egpu and works exactly as needed. happy with my system

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • very quiet

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It’s been running very quiet and am happy with this purchase, I do wish it was a bit cheaper tho

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • It’s A Power Supply

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I mean it’s a power supply, so not much to say other than it works and came with all the pieces I need.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • thas cool

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    great psu in my pc r 9 9700x and rtx 5070 msi gaming trio oc

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • GREAT PRODUCT

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Has been working like a champpppp!!! NO COMPLAINTS

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Would definitely buy again.

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    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product cool feature, adjust fan speed. Awesome product

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Great fully modular power supply

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    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I went from 8 power cords in my pc to 4, the wires that plug into the power supply aren’t in a giant sleeve either so the wires are really small and easy to wire manage a whole setup without issue

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • works great!

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    had a smaller corsair power supply but games were crashing after updating my video card. this power supply was easy to install and games now running without a hiccup.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Only complaint is the cables arent tied together but they do include plenty of zip ties

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Working great

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Replaced a faulty power supply and it's working great.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Easy

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love controlling the fan speed and sound with a little turn.

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • PSU Best BUY!

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    psu went out used as a replacement working just fine. Recommend to anyone wanting a upgrade

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend

  • Great

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This PSU is great. It's modular and has a turn wheel for the fan speed

    This review is from CORSAIR - RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply - Black

    I would recommend this to a friend
Page 9, Showing 161-180 of 268 reviews
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