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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:
$149.99
Save $20
The comparable value is $169.99
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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 9 Showing 161-180 of 358 reviews
  • Pros mentioned:
    Overall performance

    Easy installation

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

    Needed to replace my old one and fortunately was able to pick this up. Installation was simple and computer has been running perfectly.

    I would recommend this to a friend
  • Pros mentioned:
    Installation ease

    Perfect for the tower

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

    Super easy to install and looks great. Highly recommend

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

    Adjustable fan speed

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

    Adjustable fan setting make this easy to really dial in for noise

    I would recommend this to a friend

  • 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.

    I have had no issues yet with this power supply yet and no crashes or anything for my rig

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

    Good

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

    This product is an outstanding choice for PC users, delivering impressive quality that makes a significant difference. Its performance is remarkable, enhancing the overall user experience with smooth functionality and reliable operation.

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

    Power supply

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Was an improvement part for my pc which overall improved my experience.

    I would recommend this to a friend
  • Pros mentioned:
    Installation ease

    Good purchase.

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

    Easy to Install, comes with more than enough cables; low powet mode knob highly useful.

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

    Perfect psu

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

    Best psu perfect for my pc build cant wait to set it all up

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

    Great PSU...

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Been using this PSU for about 4 months now, and I haven't had any issues. The 12x4 power cable for the GPU has also been great, and it was actually the main selling point for this particular PSU, so from my experience thus far, I wouldn't hesitate recommending it to others.

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

    Corsair Power Supply

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

    I was working on my first build and It works perfectly.

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

    Good Buy

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

    Works great. Item came as expected and works as expected

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

    Good Value Product

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

    Good for the price, it comes with everything that you need. So far haven't pushed it too hard (I have run some benchmarks, which it performed good in), but expect it shouldn't struggle.

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

    Easy to manage cables

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

    The cables that come with the psu are braided and are some of the best I've used and feel much sturdier than other manufacturers. The knob for manual fan control is a neat feature even though I just leave it automatic.

    I would recommend this to a friend

  • Works

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

    Is working type shi no cap on stack frfrfrfrfrfrfrf

    I would recommend this to a friend
  • Pros mentioned:
    Installation ease

    Great Power Supply.

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great Product, easy to install and great for anyone who is building their pc or needs a new ps.

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

    Corsair RMx Series RM850x...Works Well

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

    i purchased this power supply for a brand new pc build with a new Ryzen 9900x cpu and MSI Mag 870e MB. This 850 watt power supply has lived up to my expectations and has blended in nicely with my new setup.

    I would recommend this to a friend

  • Solid PSU

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

    Does as advertised, this PSU was put into a recycled build for a friend's son. More than enough power for future builds.

    I would recommend this to a friend

  • review

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

    Good power bank has lasted me the last 2 years and is great

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

    Would recommend

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

    This has been in use for almost a year now and is working well. Its quiet, the fan rarely turns on.

    I would recommend this to a friend

  • It Supplies Power

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

    It's a Power supply, Bought it in a pinch, Thought mine had died but after i found out that mine was fine, i chose to keep it, even in a gaming load the fan will not spin. Feels very nice to install and is very competitively priced @ $145 (after tax)

    I would recommend this to a friend
Page 9, Showing 161-180 of 358 reviews
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