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Customer Ratings & Reviews

Your price for this item is $149.99

Customer reviews

Rating 4.8 out of 5 stars with 1784 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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96%would recommend to a friend

Customers are saying

Customers frequently mention the RMx Series RM850x's excellent performance and quiet operation as major strengths. Its fully modular design and ease of installation are also frequently praised, simplifying cable management and the overall building process. While some users noted its larger size, the positive feedback overwhelmingly focuses on its reliability and value. The power supply is considered a great option for its price point.

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 57 Showing 1,121-1,140 of 1,784 reviews
  • Rated 5 out of 5 stars

    Great 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.

    This thin can gandle so much stuff its unreal. Have it in my pc for my graphics card and ive got so many extra slits to power things with i dont know what to do with them all

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    good power source

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

    It does its job very well, the cables feel made of good material and it doesn't make noise.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great Modular 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.

    This well reviewed (researched in online) PSU was easy to install and has been a great replacement for my ailing previous PSU. Looking forward to many years of use.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Does the job

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

    Very good power supply. Would recommend this if you’re using a 4070 ti, 4070 ti Super or 7900 XTX in your build.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    No Complaints!

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

    After more than ten years of constant use, my AX 850i died. Knowing Corsair's longevity, I purchased this, and it's been working like a champ. I just wish it came with a booklet like the older PSUs.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Power Supply

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

    Holds well against the 7900xtx, haven’t had any issues with random shut offs vs 750w.

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

    Rated 4 out of 5 stars

    Quiet and does the job

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

    Is incredibly quiet even when working under heavy rendering load - however, the cables are stiff and cheap compared to EVGA's

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Very Reliable

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

    Recently upgraded to a 4070, wasnt looking tk break the bank on a nice PSU. This was perfect!

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great PSU for the price.

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

    This Corsair was easy to install and came with all the wiring. So far it's working great and is handling the RTX 4080 well.

    I would recommend this to a friend
  • Pros mentioned:
    Modular

    Rated 4 out of 5 stars

    Great power supply, cables meh

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fully modular, works great. The cables tho, too stiff. Ended up buying cables from cable mod.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Recommended

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I was having issues with my cpu and graphics card and this fixed it CPU was bottlenecking graphics card due to power. Have had it for a year now no problem

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

    Rated 4 out of 5 stars

    Power supply

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

    Got this for my first ever pc build.. this is more than enough power for what I’m doing.. great purchase!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Best psu in my research

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

    Very quiet very efficient psu for my 4060 ti 16gb Would always recommend to high value gamers

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

    Rated 4 out of 5 stars

    Very nice

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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 for the gaming pc I built for my son.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Easy recommendation

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

    Corsair is always good and stable. I'm currently running 3 of these in 3 different PC. You never think about the PSU or what its doing, which is exactly how we all want it to be! Easy to recommend the 850 as it gives plenty of headroom for large GPU and upgrades.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Power boss

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

    This power supply is boosting my gpu (4060 ti) and it's handling amazing with water cooling as well

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great power supply from a respected brand.

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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 from a respected brand. The modular cable system means you only have to hook up the cables you need making cable management and a clean look much easier.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Awesome PSU for whatever you need

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

    I use this with a 4070ti and an i5-13400 and it is GREAT. Holds up very very well and its very quiet. Love the fully modular PSUs, and this one is super easy to hook up!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Exactly what I needed

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

    Works perfect. Easy and clear setup. Perfect addidtion to my new PC to power my new GPU

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great price and product

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

    After getting my pc looked at with Geek Squad bought this to fix my issues and haven’t had a problem since.

    I would recommend this to a friend