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Customer reviews

Rating 4.6 out of 5 stars with 147 reviews

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  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.5 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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92%would recommend to a friend

Customers are saying

Customers enjoy the Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 850W Semi-Modular Power Supply for its overall performance and how nicely it works in their computers. The power supply and easy installation are also well-received, along with the quiet noise level and semi-modular design that allows for better cable management. Some customers appreciate the price and modularity as well.

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 1-20 of 147 reviews
  • Pros mentioned:
    Noise level, Overall performance

    Rated 5 out of 5 stars

    Good for the price

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

    Works great and is very quite and good for the price. Also gives good room for upgrades in the future which is nice

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

    Rated 5 out of 5 stars

    IT WORKS!

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

    The Thermaltake Smart BM3 850W PSU is a reliable choice for modern systems, featuring 80+ Bronze efficiency for energy savings, PCIe Gen 5 and ATX 3.0 compatibility for next-gen hardware, and semi-modular design for better cable management. Its 850W power capacity ensures stability for high-performance builds.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello

      We are happy to see you are satisfied with your PSU. If you need any assistance feel free to reach out any time.

      Best Regard,
      Thermaltake Support

  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Works great

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

    Works great with my older gtx 1080 and liquid cooled i9, was getting random shutdowns on pld PSU after swapping from a gtx 960

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

    Good budget psu!

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

    I know it’s bronze but I’ve had this a couple years now & it’s worked great. I’ve used it with a handful of gpu’s and a couple different CPU’s. Worth noting it ran a 4080 and a 9070xt amazingly as well as a 10700k and a 14900k beautifully. No issues highly recommended.

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

    Works with 2014 and 2024 tec

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

    Make sure to get an unopened box... Works with my Asus X99 MB (2014) and NVIDIA GeForce RTX 4070 Ti Super (2024) gpu. If all of the cables were included I would have kept this in my setup but it was missing 2 runs of sata cables and had 1 extra run of molex. The box was apparently an open box as one end of the plastic was missing but I didn't think anything about that.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello,

      We are glad you are enjoying your PSU. If you have any questions please feel free to reach out any time!

      Best Regards,
      Thermaltake Support

  • Rated 5 out of 5 stars

    Great Product

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

    Was put into my husbands PC that came from the UK. We had to swap the power supply to match the USA outlet voltage. Has been great and works amazing.

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

    Rated 5 out of 5 stars

    Perfect power supply for clean cable managment

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

    Power supply has more than enough juice for my mid / upper level build. It's super quiet with great build quality. I picked up on sale and glad I opted for the Semi-Modular design. Way cleaner cable management

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello

      We are happy to see you are satisfied with your PSU. If you need any assistance feel free to reach out any time.

      Best Regard,
      Thermaltake Support

  • Pros mentioned:
    Overall performance

    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.

    Works like a charm. Have it installed with my 7800X3D build.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello, we are happy to see that you are satisfied with your PSU. If you need any assistance, feel free to reach out anytime. Best regards, Thermaltake Support

  • Rated 5 out of 5 stars

    750w 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.

    Very solid beginner choice for a pc, good price, very silent fan, and comes with everything you need and more, definitely recommend.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello,

      We are glad you are enjoying your PSU. If you have any questions please feel free to reach out any time!

      Best Regards,
      Thermaltake Support

  • Rated 5 out of 5 stars

    Gaming with a purpose

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

    It was a great flexibility replacement for the original one for my gaming console computer.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello, we are happy to see that you are satisfied with your PSU. If you need any assistance, feel free to reach out anytime. Best regards, Thermaltake Support

  • Rated 5 out of 5 stars

    Great 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.

    This psu made my first pc build so Much easier and faster. I would recommend this for any body I had it for about a month and I did not have any issues.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello

      We are happy to see you are satisfied with your PSU. If you need any assistance feel free to reach out any time.

      Best Regard,
      Thermaltake Support

  • Rated 5 out of 5 stars

    Thermaltake smart bm3 80 + Bronze

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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.

    I like the price and the product the reason I pick up this power supply is for the PCIE Express 5.0 one cable direct connection to my 4080 Super RTX

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello,

      We are glad you are enjoying your PSU. If you have any questions please feel free to reach out any time!

      Best Regards,
      Thermaltake Support

  • Rated 5 out of 5 stars

    Good PSU.

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

    Good PSU. Comes with plenty of cable options. Your 24 pin and CPU power is built in.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello,

      We are glad you are enjoying your PSU. If you have any questions please feel free to reach out any time!

      Best Regards,
      Thermaltake Support

  • Rated 3 out of 5 stars

    Will probably return it

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

    Have a $75 gift card. I was trying to burn. Don’t really need it. It’s OK.

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

    Could’ve burned down my house.

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

    didn’t even own it for 30 days.. NOT EVEN 30 DAYS. today was the 28th day I owned this product and the power cord got so hot it burnt straight through and started sparking nearly electrocuting me. There’s a burn mark on my carpet, and if I wasn’t there when it happened it could’ve easily burned my house down. Do not buy this product.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Cable management, Installation, Overall performance

    Rated 5 out of 5 stars

    Easy Install

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

    Upgraded my graphics card so needed additional power. Easy install and I love the modular nature, so there are fewer cables clogging up the guts of my PC. Works great.

    I would recommend this to a friend
    • Brand response from Thermaltake
      Posted .

      Hello, we are happy to see that you are satisfied with your PSU. If you need any assistance, feel free to reach out anytime. Best regards, Thermaltake Support

  • Pros mentioned:
    Overall performance, Power supply

    Rated 5 out of 5 stars

    Great low priced Power Supply, Less Cord Clutter!

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

    I bought this as the cheap thermaltake with only 500w was having some issues with a video card. This one I liked so much better as it had tons of power, worked well and also was semi modular. With the other unit I have cords everywhere, this one allowed me to not use some of the cords I didn't need. This one will be so much better when I build another system with a better video card also.

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

    Rated 5 out of 5 stars

    Reliable, Quiet, and Perfect for High-End Builds

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

    I’m currently running this power supply with a pretty demanding setup — AMD Radeon RX 9070 XT, AMD Ryzen 7700X, and 32GB of RAM — and it has been working perfectly. The PSU delivers stable power with no issues at all, even under heavy gaming and multitasking loads. One thing I really appreciate is how quiet it is. There’s basically no noticeable fan noise, which makes my whole setup feel smoother and more premium. The semi-modular design also made cable management much easier, and installation was straightforward. Everything feels solid and well-built for the price. Overall, this is a great value PSU that handles high-performance components without any problems. Definitely recommend it if you’re building or upgrading a gaming PC.

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

    Rated 5 out of 5 stars

    Silent PSU

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

    Due to upgrading my GPU (RTX 5070) i needed a new PSU. I wanted something i considered affordable but at the same time wouldn't run into any issues with powering my pc. I landed on this PSU due to it having be semi-modular. If you're looking for something that has modular capability but runs cheaper than competitors this is a solid option.

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

    Rated 5 out of 5 stars

    Good for the price.

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

    Very quiet and stable, comes with a lots of cable and longer mother board cable. PCI-E cables save me from chaos.

    I would recommend this to a friend