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$166.99
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The comparable value is $209.99

Customer reviews

Rating 4.8 out of 5 stars with 473 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 473 reviews
  • Pros mentioned:
    Noise level, Overall performance

    Rated 5 out of 5 stars

    What else is there to say? It's great!

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

    Does exactly what you need it to, no qualms here... Having control of the fan speed is pretty nice, it rarely ever needs to be turned up so its dead quiet

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

    Rated 5 out of 5 stars

    Works well

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

    Works well. I like how you can change the fan speed manually and that is modular

    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, Noise level

    Rated 5 out of 5 stars

    Corsair good quality

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

    Bumped up to a 1000 watt to go with my 5080. Steady silent unless you turn up the fan. Manual fan control knob. No issues.

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

    Rated 5 out of 5 stars

    Excellent Value

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

    Easy to install, ample cables, quiet. This solved an underpowered graphics card problem.

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

    Rated 5 out of 5 stars

    Perfect

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

    Highly recommend easy to install and the optional fan control is very nice when running intensive loads

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

    Rated 5 out of 5 stars

    Quiet little powerhouse

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

    Powerful and quiet! So far it has ran my ASUS X870E-E, 9800X3D, and 5070ti with zero issues! Highly recommended.

    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
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Power source upgrade

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

    Works perfectly. Plug and play. Eliminates a significant amount of extra not needed wiring

    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:
    Installation ease, Noise level

    Rated 5 out of 5 stars

    all you need

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

    easy to install, comes wirh a ton of cables. its not loud, what more do you want

    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
  • 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
  • Rated 5 out of 5 stars

    PSU platinum

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

    looks great! I would recommend the corsair brand, ive talked to many about these they work well!

    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:
    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

    12700k/5080

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

    Powers my build. It has no issues and its really quiet. Corsair products are reliable from my experience and it has a 10 year warranty from Corsair so that eases my mind although I hope ill never have to use it.

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

    Powerful and Reliable PSU

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

    This 1000W Corsair power supply has been flawless in my system. I’m running it with an RTX 5080 and multiple high-end components, and it handles everything without any issues. Power delivery is stable, consistent, and I’ve had zero crashes or power-related problems. It’s quiet, efficient, and the build quality feels premium. Installation was easy thanks to the modular cables, which helped keep my setup clean and organized. If you’re running a powerful GPU and a high-performance build, this PSU is more than capable. It gives me total confidence that my system is getting the power it needs. Highly recommended.

    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