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Customer Ratings & Reviews

Your price for this item is $219.99
The comparable value price is $254.99

Customer reviews

Rating 4.6 out of 5 stars with 101 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers frequently mention the RM1200x power supply's superior performance and ease of use, praising its excellent cable management capabilities and quiet operation. Many reviewers highlight how much easier this power supply makes PC building and maintenance. The robust design and ample power capacity also receive significant positive feedback.

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 4 Showing 61-80 of 101 reviews
  • Pros mentioned:
    Power supply

    Rated 4 out of 5 stars

    Power is there.

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

    Power is there but I didn't like how the module outlet sits directly on top of the power switch instead of being on the opposite side of the power switch. Check and see if your pc case has any interference with cables before buying this PSU.

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

    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.

    No issues powering my build and fan is near silent. Corsair makes quality PSUs.

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

    Rated 5 out of 5 stars

    Quiet with no problems

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

    Went with about double what i needed so the fan wouldn't be loud and that has been awesome

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

    Rated 5 out of 5 stars

    Awesome product!

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

    This is a great psu! I have an extreme high end pc and it has plenty of power, and is very quiet, love it!

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

    Rated 5 out of 5 stars

    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.

    Love the power supply would buy another if I’m building another pc

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

    Rated 5 out of 5 stars

    The silent assassin

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

    Great item dose what I need it to do no issues super silent I never even notice it’s there and that’s a good thing.

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

    Rated 5 out of 5 stars

    Great PS. Inovative Side outputs

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

    Really nice power supply! I just hope That it will not need to be replaced For quite a while.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use
    Best Buy Employee

    Rated 5 out of 5 stars

    Great for custom builds.

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

    I love the ease of access you get when you have all your ports on the sude versus in the back. Makes everything so much easier.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Future proofed

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

    A power supply that is future proof. Includes easy usage by having the plugs on the side and special wires for your chonky GPU.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great PSU... but...

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

    Great PSU and I like the way they handled the 12HVPWR cabling, I think it might prove to be much better than the standard 12+4 to 12+4 for the gpu. The only downside for me was that I had thought the shift would help in cable management, but it didn't as much as I had hoped. That being said the connectors are easier to reach if need be in the future!

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Powerful !

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

    Great power supply it will easily handle heavy load specially if you planning to upgrade into newer GPUs

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

    Rated 5 out of 5 stars

    Very nice, I like

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

    Nice power supply. Quite, and supplies power. What more could you ask for.

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

    FIXED MY RANDOM SHUTDOWNS WHEN GAMING

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

    Playing games on steam was causing random shutdowns, swapped this PSU for my evga 1300 supernova and haven’t seen any more random shut downs.

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

    Rated 5 out of 5 stars

    RMX Shift Rules

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

    Powers the RTX 4090 Gaming OC with room to spare. Fantastic power supply.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Does not work with 5090

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

    Doea not work with 5090. Stay away if you have a 5090 else your pc will shutdown. Get an ATX 3.1 not ATX 3.0

    No, I would not recommend this to a friend
    • Brand response from Corsair
      Posted .

      Hello,

      It definitely will work with 5090. Please contact our team directly on our site if any assistance is needed: help.corsair.com

      -Art CorsairGaming

  • Pros mentioned:
    Power supply

    Rated 5 out of 5 stars

    Powerful

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

    Great product, powerful and average size. Perfect for my case

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

    Rated 5 out of 5 stars

    Gets the job done.

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

    Overkill but it helps knowing i wont have to worry about enough power.

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

    Overall good didnt fit

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

    I like this PSU but it didn't fit in my Lan cool 3 case without putting stress on the cables.

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

    Mr rengoku

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

    I have this paried with an 17 13700k and a 4090 and no issues the 12VHPWR cable is a very nice addition to this as i didnt want to use the stock cable that came with the 4090 so far so good highly recommend getting this PSU the side paneling is a bonus

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

    No issues

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

    Had no issues, installed just fine and works as intended.

    I would recommend this to a friend
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