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Customer reviews

Rating 4.5 out of 5 stars with 13 reviews

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  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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85%would recommend to a friend

Customers are saying

Customers find value in the SF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply, but have concerns about its cable stiffness. While some customers appreciate the product's modularity and quiet operation, others find the cables to be too stiff and difficult to bend, which can make installation challenging.

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 1 Showing 1-13 of 13 reviews
  • Cons mentioned:
    Cables

    Rated 5 out of 5 stars

    A small but powerful power supply indeed!

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

    If you are looking for a newer PSU (power supply unit) that packs a punch and can utilize more cable space, this is the one for you! Granted, the only downside is that it uses the newer micro-cut (type 5) cables, so that means the connectors that plug into the PSU is alot smaller so normal cables bought elsewhere will NOT fit. So keep that in mind. There are PLENTY of cables inside the box to even power a 4080 graphics card. Cables are a bit rigid so make sure the case you have is not a small form factor build, or you might have to consider getting custom sleeved cables! Overall, fantasitc quality and the zero-rpm fan is always a plus feature!

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

    Rated 5 out of 5 stars

    Small, flexible, and works well.

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

    Great in a Cooler Master NR200P - the cables are short (as expected for SFF builds) but not too short. It worked really well and the cables were flexible enough to fit without getting in the way of airflow.

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

    Rated 5 out of 5 stars

    Quality Corsair PSU

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

    Quiet and efficient, does everything a good PSU should. Only complaint is the cables are a little too short and rigid, so it might be an issue depending on your PC case.

    I would recommend this to a friend
  • Cons mentioned:
    Cables
    Best Buy Employee

    Rated 4 out of 5 stars

    Good PSU but…

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

    I got this PSU for a SFF build and never had problems so far. My main complaint is that the type 5 cables are super stiff and hard to bend unlike the cables they provided for the sf750 and sf600. You have to pay extra to get the individually sleeved cables that corsair has and its super long for a SFF. Considering returning this and getting the SF750 for their braided easy to manage cables.

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

    Powerhouse Performance: CORSAIR SF850L Delivers!

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ultimate power for high-performance rigs! Paired this CORSAIR SF-L Series SF850L with my Corsair 011 mini and RTX 4080 Super—what a powerhouse combo! Smooth, stable performance for demanding setups. Fully modular design streamlines cable management. Perfect for serious gamers and PC enthusiasts.

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

    Rated 3 out of 5 stars

    Good psy

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

    Thw cables are hard to manage in ssf build..a bit overpriced if i may say.

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

      Hello,

      What seems to have been the issue? Please contact our team directly on our site for assistance with anything!

      -Art CorsairGaming

  • Best Buy Employee

    Rated 5 out of 5 stars

    Great PSU

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

    I know most SFX builds don’t use this much power, but my 7900XT had some major coil whine. Replaced my 750w with this 850w and the coil whine went away.

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

    Power supply

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

    Building a mini PC so needed a smaller power supply. This fit perfect.

    I would recommend this to a friend
  • 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.

    I love this psu! I built a mini itx that infortunately had water spilled on it and killed it. I had such a good experience with the power supply(the only part on the old pc that I hand had to replace at some point) that I had to buy it again when it met its unfortunate demise. Would recommend!

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Buzzes while playing games

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

    The PSU makes a distinct buzzing noise while playing games. I couldn't figure it out at first, but I finally isolated and replicated the sound. It is most definitely the power supply. I have a 7900xtx and 7800x3d PC. I can't quite figure out if it's normal. There doesn't seem to be a lot of consensus online. Some say it's harmless and others say it could be defective. My case sits on my desk, so it's pretty annoying to hear. It's like a fly buzzing in my ear. It's not the fan because it's not moving when it happens. I wish Best Buy had longer return windows. I would defintely return it if I could. This is why I don't like buying from Best Buy.

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

      Hello Michael,

      Our team can definitely assist with this, please reach out directly right on our site at any time.

      -Art CorsairGaming

  • Rated 5 out of 5 stars

    Small and powerful.

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

    Great power supply for the price and can handle my 7800XT and 7800X3D with ease.

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

    Great SFX-L PSU

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

    Great PSU! Can't hear it running at all which is great!

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

    Great psu with 1 cavaet

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

    Good size sfx l. Its not noisier just louder under medium loads vs few of the other psu i used but seems great otherwise.

    I would recommend this to a friend
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