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Customer Ratings & Reviews

Your price for this item is $159.99
The comparable value price is $209.99

Customer reviews

Rating 4.9 out of 5 stars with 284 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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98%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 1 Showing 1-20 of 284 reviews
  • Pros mentioned:
    Cable management, Noise level, Power capacity

    Rated 5 out of 5 stars

    Quiet, powerful, and rock-solid reliability

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

    The Corsair RM1000x delivers flawless, stable power even under heavy GPU loads. It runs whisper-quiet, stays cool, and the fully modular design makes cable management effortless. Build quality feels premium, and efficiency is top-tier. Perfect for high-end gaming or workstation rigs this PSU gives long-term confidence and clean performance every time.

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

    Rated 5 out of 5 stars

    Beefy modular 1000w

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

    I picked it for the cybenetics gold rating, and ability to be efficient across different load levels, as this powers a workhorse/gaming pc, from several HDD in raid, to an RTX 5070, it seems to do the job well! Modular cables bend easily, and it even came with some combs to tidy up some of the wires you'll have to see.

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

    Rated 5 out of 5 stars

    Great power supply

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

    Great for my pc build needed something that could handle my rtx 5089 and this psu did it perfectly also very easy to install and comes with different cords to suit different computers overall great psu would buy again for future builds

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

    Rated 5 out of 5 stars

    It's a great PSU!

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

    I haven't had any problems at all! I bought it because I recently got an RTX4090 and it definitely gives enough power output. It's really a great PSU, would highly recommend if you need some power.

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

    Rated 5 out of 5 stars

    Rm1000x

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

    The Corsair RM1000x is a top-tier power supply, offering a blend of performance, efficiency, and quiet operation. It's an ideal choice for high-end gaming or workstation builds that require reliable power delivery. With its fully modular design, solid efficiency rating, and extensive protection features, the RM1000x offers excellent value for those who need a powerful and long-lasting PSU.

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

    Rated 5 out of 5 stars

    Best power supply option for good pc builds

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

    I had issues with my current power supply having issues after doing some upgrades to my tower. I bough this because of the brand name and warranty and am very happy with how everything is working now the past couple months.

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

    Rated 5 out of 5 stars

    Excellent voltage protector

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

    Excellent for protecting the components of my new gaming PC. Great voltage protection. You can also control the fan speed, which is great. Highly recommended.

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

    Rated 5 out of 5 stars

    Love it

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

    This is a beast buy it don’t worry about the money it’ll come back lol love Corsair keep up the great work

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

    Rated 5 out of 5 stars

    Good PSU for my build!

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

    Awesome power supply, comes with nice cables and love the modular setup for it.

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

    Rated 5 out of 5 stars

    Great buy

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

    Super quiet powerful Corsair psu. I love that it has a connector in the back for modern gpus as well. It’s a game changer.

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

    Love this PSU

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

    I really love this PSU. Its a modular unit so only the cables you require needs to be installed cutting down on cable clutter within case.

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

    Rated 5 out of 5 stars

    Great 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.

    Installed this power supply to match with my 5070ti gaming trio, works great. Using it to power this pc (pictured)

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

    Rated 5 out of 5 stars

    Powers a 5080 and 7800X3d and 6 x 140mm fans

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

    I went from a 3080ti and ThermalTake 750W grad tough power RGB PSU which had served me well for about 8 years to a new 5080 GPU - Asus TUF version. I wanted to ensure stable power and also wanted the new PCIe connector for a simplified install. This bad boy did the trick!

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

    Rated 5 out of 5 stars

    Review

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

    Gave me plenty of headroom. Power efficiency is great for the electric bill. Had all the cables I needed

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

    Rated 5 out of 5 stars

    1000w 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.

    Work greak plenty of power for my system. Easy to set up

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

    Rated 5 out of 5 stars

    Power supply for music studio new build PC

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

    Excellent product… it replaced a unit from Amazon that took two weeks of testing to determine it was defective… You guys are the best LOL

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

    Rated 5 out of 5 stars

    Great 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.

    Great power supply does what it was built for high quality!

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

    Solid 1000w psu.

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

    Nice psu, plenty of cables for its size. Cable combs make it easier to keep things nice and neat inside the pc.

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

    Rated 5 out of 5 stars

    Quality PSU

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

    Extremely satisfied with this power supply. The cables provided are very nice quality. The fan dial is very easy to use & future ready for newer graphics cards.

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

    Rated 5 out of 5 stars

    Trustworthy Powersupply

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

    I always heard good things about CORSAIR's various power supplies and wanted to get one that would be adequate for future upgrades to my pc.

    I would recommend this to a friend
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