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Customer Ratings & Reviews

Your price for this item is $124.99
The comparable value price is $144.99

Customer reviews

Rating 4.8 out of 5 stars with 174 reviews

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  • Value

    Rating 4.8 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers are impressed with the RMe Series RM850e power supply's reliable performance, handling major loads without issue and consistently delivering stable power. The modular cable design is praised for simplifying cable management and reducing clutter, while its quiet operation is a frequently cited advantage. Many appreciate the ample power capacity, sufficient for high-end systems. Overall, the power supply receives overwhelmingly positive feedback for its functionality and ease of use.

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 9 Showing 161-174 of 174 reviews
  • Rated 5 out of 5 stars

    Great PSU

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

    My last Corsair RM1200 lasted me from April 2015 until May 2025. So naturally I went with the same brand. Solid PSUs.

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

    Decent enough

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

    Good value for the money; it supports my 5080 just fine.

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

    Good Deal!!!

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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.

    Good emergency replacement PSU. My Father in laws PSU messed up, hard to replace it fast. Couldn't beat the price and availability.

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

    Power Supply Unit

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

    Great quality psu for my pc. Can’t go wrong with 850w

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

    Great psu but the X version is better

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

    Great PSU however I wish I had gone for the non -e variant this is still a fantastic psu but I know the X has better components and could help the unit last longer.

    I would recommend this to a friend
  • 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 Power supply. It runs my 9800x3d and 5070 ti with not issues.

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

    W

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

    10/10, works as intended, My power supply shorted and this worked perfect as a replacement

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

    Good supply, cheap cables

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

    The power supply itself is good, it's the thin cheap cables they come with now. Used to be, the cables were bundled together in a well wraped casing, now they are just a buch of thin wires capped at the ends and make cable management a pain.

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

    Good unit

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

    Good PSU except you can not buy replacements for the all white cables that come with it from Corsair. They only offer them with black connectors/plugs.

    I would recommend this to a friend
  • Pros mentioned:
    Cable management

    Rated 1 out of 5 stars

    Look for damage ahead of time

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

    Honestly I’m not happy with how Corsair has been building there products lately the unit right out of the box didn’t work not my first rodeo with this. troubleshooting the problem led me right back to this psu and honestly it could have been just the 1 and million but I can’t say I like this one now the 750 I’ve had no problems with and still use in another build but it is the older version of there rm line now I will say the cables from Corsair are amazing quality

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    They are junk

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

    These are straight up junk. I bought 1 and 7 days later it started crashing with a burning smell coming from it. I exchanged it and within 10 days the same thing happened to the new one. By then I'm past my 14 day warranty and out of a lot of money. I ended up getting an $80 psu on amazon and its holding up much better than these

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Corsair 850e

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

    The cabbles are nearly impossible to remove from mobo once they are installed. Atx3.0 connectors are not very friendly.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    not functioning

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

    the unit was not functioning. tested from different system dead.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Corsair Company is horrible!!

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

    Headed back to Best Buy to return my 2nd power supply this week. Corsair has no customer service or technical support. I would has been fine if they had someone to help troubleshoot the unit. My only option is to return it. Both power supplies would turn off 1 sec after connecting PS-ON and ground with nothing else connected.

    No, I would not recommend this to a friend