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Customer Ratings & Reviews

Your price for this item is $209.99

Customer reviews

Rating 4.8 out of 5 stars with 293 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers are satisfied with the RMX Series RM1000x power supply's performance, ample power capacity, and quiet operation, even under load. Many appreciate the ease of installation, excellent cable management due to its modular design, and the convenient fan control. The power supply's compatibility with various components is also frequently praised. While some users reported an absence of coil whine, it wasn't a widely discussed issue.

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 7 Showing 121-140 of 293 reviews
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Great PSU

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

    Comes with plenty of CPU cables and PCIE cables. Works great! I haven't had any issues.

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

    Rated 5 out of 5 stars

    Great for the Price.

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

    Needed an upgrade to my system that was worth while. This wasn't too expensive and got the job done. Also an A-Tier PSU.

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

    Rated 5 out of 5 stars

    Top Tier power supply

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

    When I upgraded my GPU I needed a power supply with a bit more juice to run my 5080. I hopped on BestBuy and had this the next day

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

    Rated 5 out of 5 stars

    Reliable

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

    Good and reliable, installation was easy and has pretty neat fan feature.

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

    Rated 4 out of 5 stars

    Good value

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

    Installed this in my gaming PC and have plenty of power for my needs and for future upgrades. One of the PCIE cables was faulty and I had to reach out to Corsair to get a replacement.

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

    Rated 5 out of 5 stars

    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.

    Been using this with my RTX 3090 setup, and honestly, it just works. No stress, no weird issues.

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

    Rated 5 out of 5 stars

    Power for RTX 5000 series!

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

    Works awesome! Love the max fan cooling! Easy install and powered up!

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

    Rated 5 out of 5 stars

    One of the GOATs for a reason.

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

    This little beast powers my new gaming rig in 2025. I don't skimp on PSUs, whereas with some other PC parts you can truly afford to go cheaper. Peace of mind achieved.

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

    Power house with the ability to control voltage.

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

    Great for a Rtx 4090 build. Has dedicated 12HPV cable that will work with most modern Nvidia Graphics cards. Enough power for a full ATX powerful gaming build. There is a knob on the back that can help with saving power draw on less poer hungry rigs.

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

    Rated 5 out of 5 stars

    Solid 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.

    Solid power supply that's replacing an aging 750w EVGA unit. This PSU is quiet and the fan rarely, if ever, runs, so I haven't had to clean the PSU dust filter on my case. My GPU 12-pin GPU connector also hasn't melted (yet). Insofar, solid unit.

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

    Beast PSU

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

    Great PSU easy to install, with great feature like the fan control in the back.

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

    Rated 5 out of 5 stars

    CORSAIR PSU

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

    Worked perfectly as expected from Corsair. I had an 850rx prior and due to parts upgrade i was lacking in power.

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

    Rated 5 out of 5 stars

    Top tier PSU

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

    Top tier PSU. Great for any use case unless you're building a spaceship and even then it's pretty goated

    I would recommend this to a friend
  • Pros mentioned:
    Fan control

    Rated 5 out of 5 stars

    Great PSU if you get it on sale its even better

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

    Awesome PSU! It has a fan knob that you can turn up or down.

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

    Rated 5 out of 5 stars

    Stable, reliable, fnd high quality.

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

    Works flawlessly. Excellent experience. Geek Squad installed everything including this on my custom build perfectly. Price is phenomenally fair.

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

    Rated 5 out of 5 stars

    Awesome PSU

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

    I like the clean look of this PSU. The fan is so quiet when not gaming. It can get loud if needed but only on intense games. Really nice quality cables and overall great.

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

    50 series ready

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

    Very worth the money in my opinion needed a good power supply for my overclocked 5080. this thing came in clutch because it already had 4 pcie cables, so it was 50 series ready out the box. also super simple to put together.

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

    Rated 5 out of 5 stars

    Rm1000x

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

    Great power supply well built enough power for pretty much anything

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

    Rated 5 out of 5 stars

    Good Power Supply

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

    What can I say, Corsair has always made some great power supplies. I got this one on sale and it was great to support my new GPU

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

    A power house

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

    Definitely helped fix what's going on with my computer and has more than enough power to run my 5070ti

    I would recommend this to a friend