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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:
6587623
Highly rated by customers for:
$135.99
Save $34
Comp. Value: $169.99

Customer reviews

Rating 4.8 out of 5 stars with 318 reviews

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Rating by feature

  • Value

    Rating 4.6 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 enjoy the RMx Series RM850x power supply for its overall performance and quiet operation, with many appreciating the zero fan mode. The fully modular cables also make cable management easier, and the installation process is straightforward. With its adjustable fan and good modularity, this power supply is a popular choice for those needing ample power.

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 12 Showing 221-240 of 318 reviews
  • 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

  • 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
  • Pros mentioned:
    Overall performance

    Power supply

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

    It's a power supply, worked as expected. Nothing special.

    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

    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
  • 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:
    Power supply capacity

    CORSAIR - RMx Series RM850x

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

    Just enough juice to power a 5700x3D and a RTX 5080.

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

    Works good.

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

    I like it. Works good with my 4070 super. Very pleased with purchase.

    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 work with solid so far, comes with plenty of cablea

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

    RM850X

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

    Excellent power supply... i recoment 100% and wire for graphic card is 1 i like...

    I would recommend this to a friend

  • Good Power Supply

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

    It’s a solid power supply for a decent price. I bought it because I needed the new connectors for the 50 series.

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

    Corsair 850W

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

    Works well, easy to set up and don’t have to plug in every cable if not necessary. Only complaint I have is that I wish the wires were more harnessed up, they do include zip ties though.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Overall performance

    Corsair PSU

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

    Works amazing, never had any problems with Corsair power supplies.

    I would recommend this to a friend
  • Pros mentioned:
    Power supply capacity

    Exactly what you need

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

    Great standard power supply, enough to power 99% of pc's

    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 product. Ive never had problems with this brand.

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

    Worth every penny

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

    Great power supply, it was just what i needed for my 4070 super

    I would recommend this to a friend
  • Pros mentioned:
    Power supply capacity

    850X Power Supply

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

    Power to spare Great choice , Fair Price...Power House..!

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

    Would recommend

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

    Bought this for my wife’s PC. Exactly what she needed. Perfect power supply.

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

    Good

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

    Good for my PC working very good on my RTX 4060ti!!

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

    Great product at right price

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

    Love this PSU - Easy to install, no 12V high power cable.

    I would recommend this to a friend
Page 12, Showing 221-240 of 318 reviews
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