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Customer reviews

Rating 4.9 out of 5 stars with 390 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 love the RMX Series RM1000x power supply for its overall performance and ample power capacity. Many appreciate its quiet operation and the ability to fine-tune the noise level. Users also find the cable management to be clean and the installation process easy, with the modular design contributing to a tidy case. A small number of users reported no coil whine.

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 5 Showing 81-100 of 390 reviews
  • Pros mentioned:
    Installation ease, Overall performance

    Rated 5 out of 5 stars

    Power box works!

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

    That's a lot of power in box! Works great and installs easily.

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

    Rated 5 out of 5 stars

    Quiet, efficient.

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

    Works great for what I need it to do. It's quiet. I have not been able to hear any increase in noise since installing.

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

    Rated 5 out of 5 stars

    Highly recommend

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

    Super quite and the modularity keeps the case clean. Highly recommend, powers my 5080 no problem

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

    Rated 5 out of 5 stars

    Great PSU

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

    Great PSU. Was mid build when the MSI one i had biught turned out to be faulty. I would have bought this but they were out of stock the week prior. Returned the MSI immesidately and picked this up and solved all my issues. Had used the previous model of this PSU in my build a couple of years prior. Works great and runs quiet.

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

    Rated 5 out of 5 stars

    Great 1000watt modular PSU

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

    Super easy install and the fan adjuster knob is a very nice feature! Well worth the money spent!

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

    Rated 5 out of 5 stars

    PC 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 was a great product i bought from best buy because it fixed the issue i had with my Omen Pc. My Omen Pc was shutting off every time i played a game but when i changed my power supply on my PC its been running excellent.

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

    Rated 5 out of 5 stars

    The power that brings you joy.

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

    It powers things. I have nothing negative to say about it. There hasn't been any issues with this. I went with corsair to match the build. Rule of thumb, if it truly is Gold rating, it's just as good.

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

    Rated 5 out of 5 stars

    Great product

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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, easy to install and the modular setup is great for no excess wires

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

    Rated 5 out of 5 stars

    Solid 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.

    Been working great, no issues. Runs quiet. On LTT labs, this shows up as a solid choice.

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

    Great build and cable quality. Fan control knob is also great for fine-tuning noise level. I uprgraded from an Apevia PSU, it is nice to know that this Corsair has good reliability and I wont have to worry about replacing it for years to come.

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

    1000x psu

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

    does what its supposed to, came with enough cables to run power to everything i needed plus all my pins on my 9070xt, good, solid psu

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

    Rated 5 out of 5 stars

    Just what i needed.

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

    Upgraded to a new graphics card and i had the older rm850x series. I bought the newer model that had the newer 16pin 12vhpwr built into the power supply so i didnt have to use an adapter. Thought i might as well upgrade to a high wattage too. So far, works just as advertised.

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

    Rated 4 out of 5 stars

    Nice unit, rattles sometimes.

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

    Its a nice power supply; I haven't had any issues with power draw, no funny smells, stuff like that. The unit rattles/vibrates irritably and VERY loudly at a certain fan speed when set manually, but it's got an "auto" function that controls the fan speed if you choose. When on auto, I haven't noticed the rattle, and I don't believe the fan kicks on audibly. I like that the cables are flexible and seem to be nice quality. It allows for much easier cable management and a nice looking setup.

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

    Rated 5 out of 5 stars

    Great power supply no problems with it yet

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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 works great it has a fan control on the back where you can manually set the fan speed but I’ve only had it for a month

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

    Rated 5 out of 5 stars

    Top quality PSU

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

    Have no complaints. Been using Corsair power supplies for over 10 years and have had no issues with them. PSU is quiet and have had no issues powering a 5090 and a 9800X3D

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

    Rated 5 out of 5 stars

    great install

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

    easy install and enough just enough type 4 cable slots. adjustable wire holders make hiding the +2 pins easy

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

    Rated 5 out of 5 stars

    High quality and reliable

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

    I purchased this PSU to replace an 850 watt version of the same product because I needed some additional overhead after upgrading my CPU. The previous one ran perfectly for 4 years and I have no reason to believe this one won’t do the same.

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

    The best

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

    As a minor improvement, some details could be refined, such as small design adjustments, additional features, or increased durability in certain areas. These do not affect functionality but could enhance the overall experience.

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

    Rated 5 out of 5 stars

    Modular, Powerhouse

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

    Product did exactly what I needed for my power intensive computer, modular ability is very convenient.

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

    Rated 5 out of 5 stars

    All the power you need and then some

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

    I've used Corsair power supplies in every build for the last 10 yrs. They've never let me down. The modular construction means you only use what you need, lessening the clutter of your case. If you want the best power money can buy then Corsair RM100x is for you.

    I would recommend this to a friend
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