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Customer Ratings & Reviews

Your price for this item is $151.99
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Customer reviews

Rating 4.8 out of 5 stars with 1347 reviews

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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 28 Showing 541-560 of 1,347 reviews
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Great Product and 10yr manufacturer warranty

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

    You need this for high watt video cards. RTX4080 ,RTX4090 .this gives you the safety margin for power

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

    Mr

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

    good power supply works well easy to connect. has fan to help keep it cool very quiet.

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

    Good replacement PSU for my tower PC

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

    Good high quality PSU to replace the 650w my computer had. Nice that they had it in stock when i walked in too :)

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

    Quiet and reliable. Could use some improvements.

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

    This does what it says and is stable. I'm running a RTX 3080 ti, which this should be more than enough to handle. I don't hear any fan noise as it has never gotten hot enough for the fan to turn on. Some feedback for the Corsair. The first concern I have is the length of the cables. The motherboard cables barely fit my compact mid tower case, the Corsair 4000D, while traveling through the case's built-in wire management. They are both Corsair after all. I also wish the cables were more flexible at the ends. There are large non-flexible sections at the end where the cable transitions to the mesh sheathing. Would also be nice if they included extra, short cables for the motherboard and GPU for folks that want to use strimmers. Then again, if they just included individually sheathed cables, then I wouldn't need the strimmers in the first place. This is a problem with all PSU manufacturers, so not a problem particular to Corsair, but something they could do to differentiate themselves in the market.

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

    Rated 5 out of 5 stars

    Great 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.

    Great power supply. Solid product. Would recommend

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

    Corsair 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.

    Fantastic product works great easy to install easier to cool down Tower because you can select what wires you have connected to the power supply

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

    Rated 5 out of 5 stars

    Reliable, no issues, great power!

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

    Fantastic unit. No issues, doesnt overheat, gives my graphics card all the power it needs.

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Life saver

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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.

    My first modular power supply, god is life difficult but atleast installing this guy wasn't :)

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

    Highly recommend

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

    Great product for a great price very easy to hook up. Great quality highly recommended product

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

    Rated 5 out of 5 stars

    Excellent

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

    Excellent Highly recommended very good performance

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

    Rated 5 out of 5 stars

    Well Built. Super Quiet

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

    Recently upgraded to an RTX 4090. Operates quietly and provides all the wattage I need!

    I would recommend this to a friend
  • Cons mentioned:
    Coil whine

    Rated 5 out of 5 stars

    Great so far

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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.

    Bought this to upgrade from an rm850x that was struggling to power my 3080, this immediately fixed the coil whine i was experiencing. Three dedicated PCIe cables is a win

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

    Rated 5 out of 5 stars

    all the power by corsair

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

    all the power you could want .from corsair many options i chose this 1000 watt and boy i got all i need .

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

    Rated 5 out of 5 stars

    More than enough!

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

    Originally had gotten the 750w version but not enough power for what I wanted so swapped it for this one and everything works flawlessly

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

    Rated 5 out of 5 stars

    Beast Mode!!

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

    This power supply is great!! Fully modular and able to power a 13700k with a 4080 and a few hard drives in my case.

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

    Rated 5 out of 5 stars

    Best 1000w psu

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

    great PSU for the money honestly. PLENTY of power for most usage.

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

    Rated 5 out of 5 stars

    Simply awesome

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

    Power is abundant with this psu. Powers both of my rtx3090s in sli with no issues. no notable noise under full load and havnt had any issuse with my pc shutting off.

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

    Rated 5 out of 5 stars

    Corsair products are great!

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

    The power supply from Corsair does not disappoint and are reliable. Great PSU!

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

    Rated 5 out of 5 stars

    1000 Watts, yes please!

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

    Great option for powering motherboard and multiple devices without making much noise at all. The 120 V or 240 V option for added efficiency.

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

    Rated 4 out of 5 stars

    Great PSU

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great PSU so far. Upgraded from a 850W non-modular and this Corsair product has been great to use. However, keep in mind that you will need Corsair’s 12VHPWR cord to be able to use a 4090 with it.

    I would recommend this to a friend