Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to content
Main Content

Customer Ratings & Reviews

Your price for this item is $151.99
Clearance
The comparable value price is $189.99

Customer reviews

Rating 4.8 out of 5 stars with 1347 reviews

Rating Filter

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

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers express satisfaction with the RMx Series RM1000x power supply's high power output, strong performance in high-performance systems, and quiet operation. Many appreciate its modular design, ease of installation, and the included cabling. While some users note the larger size of the unit, the overall feedback highlights its positive attributes.

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 39 Showing 761-780 of 1,347 reviews
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    great power supply

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

    Purchased this because got a 3080ti and haven't had any problems so far.

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

    Percect

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Absolutely an amazing power supply I went through 3 other power supply’s before I found this one. I couldn’t find one with all the connections I wanted. I bought this one and it was perfect with room for expandability too!

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

    Rated 5 out of 5 stars

    Great

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

    Works great ive never had a problem with corsair power supply i have 5

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

    Rated 5 out of 5 stars

    RM1000x Rating

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

    Using this with my 3090ti, very powerful and excellent

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

    1000W "Futureproof"&Corsair PSUs=Good Quality

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

    Use with RTX 4090 and i7-12700K, hopefully will be able to keep this PSU for quite awhile and will have plenty of power delivery capacity as hardware continues to evolve greater power requirements. The build quality of the PSU feels premium, and I had no issues.

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

    Rated 5 out of 5 stars

    Great PSU

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

    Very good power supply. Handles my 3080 Ti and 5900x with no problems

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

    Rated 5 out of 5 stars

    Go with what you know!

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

    The Corsair 1000w power supply unity is a great buy!

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

    Rated 5 out of 5 stars

    Ticks the right boxes

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

    Runs quiet, delivers power. Cabling is modular which is awesome.

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

    Rated 5 out of 5 stars

    The go to PSU

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

    It's perfectly fully modular and has fully black wires no more mustard and ketchup.

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

    Rated 5 out of 5 stars

    Great cooling device for desktop computer.

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

    Wonderful device for your computer and you must get it.

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

    Excellent Modular Power Supply

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

    From resources online and personal experience, I knew this would be a good power supply. However I was very surprised with just how easy it was to route the cables up into my case. If you need a 1000 watt power supply, and like clean cable management, this is the perfect PSU for your needs.

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

    Beastly 1000w PSU for a current gen build.

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

    Powered a 7700x and a 4080 with no issues, though I highly recommend that one purchases corsair's own 16pin adapter available for their PSUs. Cable managing the included PCIe cables with the 3x8 to 16pin adapter is a nightmare. Super solid PSU, never hear the fan kick on, unless under heavy load while gaming at 4k.

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

    power supply great for gaming pc's

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

    building new pc for my full scale 737 flight simulator. both my sim computers have now been upgraded to this power supply to handle the newer graphics card... nice supply

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

    Rated 4 out of 5 stars

    Pretty good unit

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

    Much needed for my graphics card upgrade. But i had to return the first one bc it was doa. Make sure to plug in before you put it into a system.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    recommended

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

    best psu ever very powerful best option for your 3090ti

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

    Rated 5 out of 5 stars

    Good PSU

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

    very reliable power supply. running my custom computer with it

    I would recommend this to a friend
  • Cons mentioned:
    Size

    Rated 4 out of 5 stars

    Good PSU

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

    Its a bit big but overall great PSU. Wish it had a 12vpwr cable though

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

    Corsair 1000w power supply

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

    Top of the line power supply unit really doesn’t get better and comes with a lot of extra cords great deal. Highly recommend

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

    Rated 5 out of 5 stars

    Excellent

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

    Quiet Fan and reliable power. Definitely recommeneded.

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

    Custom PC Build

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

    Works great and the 1000W gives me plenty of wattage to spare from my estimated wattage of around 608W (AMD Ryzen 9 7950x3d + 4080 Super)

    I would recommend this to a friend