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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 How to Build a PC - How To Video video 1 minutes 34 seconds

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

Model:
CP-9020270-NA
SKU:
6587623
Highly rated by customers for:
$169.99

Customer reviews

Rating 4.8 out of 5 stars with 358 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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There aren't enough negative mentions yet.
95%would recommend to a friend

Customers are saying

Customers are delighted by the RMx Series RM850x Cybenetics Gold Fully Modular ATX Power Supply's overall performance, noting that their computers run perfectly. They appreciate its quiet operation, even when the system is under heavy use, and find the cable management to be very easy. Additionally, customers find the installation to be easy and like the adjustable fan.

This summary was generated by AI based on customer reviews.

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 13 Showing 241-260 of 358 reviews
  • Pros mentioned:
    Power supply capacity

    Good psu

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

    Haven’t had a single power issue with this and I can use it safely

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Good replacement

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

    Had my old psu take a nose dive. This one has been working great

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    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.

    I would recommend this to a friend

  • It was a Journey...

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

    I dropped this piece and it still works. I ended up connecting everything to it and while easy, I did it before my build so I had to remove all the cables. Incredibly frustrating. I guess that is what you want in a part? Durability? I'll give it 5 stars because it's treated me right, but if you plug everything in before the actual build... Have fun unplugging the cables.

    I would recommend this to a friend
  • Pros mentioned:
    Cable management

    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.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    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

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great upgrade

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

    Great upgrade from my 650w Works great. Highly recommend

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    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.

    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

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great quality!

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

    operating amazingly purchased as a replacement for the one that went out in my new gaming p./c. and i have yet to have any issues performing as expected,

    I would recommend this to a friend

  • Great item for a good price

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

    Last PSU (different brand with 10 year warranty) went out after 4 years, Corsair has a good warranty so this came in handy when I needed it. I have used the Corsair parts, cases, and fans and they have been great with customer service if there were any issues. They even take care and help out after warranty periods.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    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

    I would recommend this to a friend

  • Simple and convenient

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

    After the replacement, it has been very stable, and the replacement process was simple and convenient.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    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

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    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

    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

    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.

    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

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Excellent

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

    Excellent power supply. S tier rated. Don't skimp on the PSU in your system.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Great power supply

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

    Great power supply. Needed a replacement and this one was perfect

    I would recommend this to a friend
Page 13, Showing 241-260 of 358 reviews
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