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Customer reviews

Rating 4.5 out of 5 stars with 416 reviews

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93%
would recommend
to a friend

Customers are saying

Customers have good things to say about the 520W ATX Power Supply's performance, price, ease of installation, and quiet operation. Many appreciate the ample connectors and compatibility with various systems. While some found the power supply slightly larger than expected, the overwhelmingly positive feedback points to a reliable and affordable option.

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 416 reviews
  • Pros mentioned:
    Noise level, Performance, Price

    Rated 5 out of 5 stars

    Works great!

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

    Reasonably priced, simple to install, runs quiet, operates perfectly. Recommended!

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

    Rated 5 out of 5 stars

    Works great

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

    With no warning, my backup computer stopped working. Power supply burnt. Looked online at Best Buy, they had a couple of power supplies. Picked this one for the wattage and number of connectors. Picked it up and installed, Works great. Plenty of connectors, very quite fan. And a very good price

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

    Rated 5 out of 5 stars

    Power to the people

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

    After installing a new gaming graphics card in the computer it had problems turning on. Looked like it needed more power and this 520W ATX Power Supply did the trick. Fits just right and had all the necessary connectors for the motherboard, hard drives and even for the new graphics card. Very silent also.

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

    Rated 4 out of 5 stars

    A good power supply to upgrade existing machines

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

    I've recently upgraded several components in an HP h8-1234, which included more memory, a faster CPU (AMD FX-8350) and a much more powerful graphics card (a Radeon RX-480). As a result this machine needed a beefier power supply to replace the pretty weak 300 watt unit that is in the machine. I've heard that the HP was notorious for not liking power supplies greater than 650 watts, so I found this power supply for only about $40 at the local Best Buy. It went in easy and it worked perfectly for my machine. The fan seems pretty quiet as well. It is nothing fancy (i.e., no removable power connectors), but will do the job for those upgrading or replacing power supplies in so-called "big-box" machines, such as HPs or Dells. It will also work if building a fairly mid-range custom machine and don't need anything fancy.

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

    Rated 4 out of 5 stars

    Decent

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

    Decent power supply for price. Installed easy and runs super quiet. Only knock is connectors are a bit flimsy.

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

    Rated 5 out of 5 stars

    Excellent fit, superior performance

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

    Well, it's a power supply; not a very sexy system modification, really. Except, when yours stops working! Thanks to Best Buy and their Insignia line of computer parts and accessories, I was able to get back up and running before close of business. The power supply fit perfectly, contained the correct connections, and performance was even better than the factory power supply, all at a very reasonable price! If you need it, just go get it.

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

    Rated 5 out of 5 stars

    Great product

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

    My power supply was making noise and my computer was acting slow, this power supply did the trick. My Dell XPS 420 is a new machine with more power it is so quiet you can’t tell its running. The supply is larger than the original but it will fit and works Great. Best Buy the price was my first reason for the purchase I am glad I did. Thanks

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

    Rated 5 out of 5 stars

    Great power supply

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

    Installed easily and worked perfectly no issues, nice and quiet

    I would recommend this to a friend
  • Pros mentioned:
    Price
    Cons mentioned:
    Size

    Rated 5 out of 5 stars

    plenty of power

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

    my second power supply died (original was a 300 upgraded to 400 watt) I thinking because of the large graphic card I installed so I desided to up the wattage, they had this unit in stock. a bit bigger than my older unit but so far so good. price was good too. just make sure your tower has the room for it is a bit larger than a 400 watt.

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

    Rated 5 out of 5 stars

    Good power supply

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

    I have a home server that is on 24/7 and the old PS died. I put this in and was amazed that is it very quiet as ps's go. The readings on the motherboard have been very consistent since installation. It probably wouldn't be appropriate for a gaming machine but for a standard box or even a light duty server it does the job.

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

    Rated 4 out of 5 stars

    Run of the mill

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

    It does what it needs to do. I ended up not using it because it was a tad too big for the case, but that won't be a problem with a standard ATX tower. If you can afford the upgrade, I would recommend going with a modular PSU, but otherwise this works just fine as a basic power supply.

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

    Rated 5 out of 5 stars

    Great replacement power supply

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

    The power supply saved my computer! My original power supply was rated at 450 watts and after a couple years stopped booting. I purchased this 520 watt power supply and my computer booted right up working like new. It runs very quiet.

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

    Rated 4 out of 5 stars

    works great

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

    This was an open box special. The price was very good and it does what a power supply does. My computer runs reliably and it was not difficult to install. The cords seemed to be a little short but otherwise I am quite happy.

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

    Rated 4 out of 5 stars

    Better than average, but beware the cable lengths

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

    I bought this on a whim because I needed something that could power my new graphics card and was very skeptical to say the least. I'd at least heard of Insignia, but I'd never used one of their products before I bought this power supply. It's been working great for the past couple months and I don't regret buying it at all. My only complaints I would issue towards this component is that - The CPU power cable is too short (for ATX case with bottom mounted power supply, cable only approx 1ft long), make sure it will reach up to the header before you buy (only a problem with bottom mounted power supplies) - Would prefer an 80 Plus rated power supply at BestBuy Stores - No power switch on back of power supply

    No, I would not recommend this to a friend
  • Pros mentioned:
    Performance, Power supply

    Rated 5 out of 5 stars

    Great power supply

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

    Completely impressed at the performance of this unit for the price point. A new video card called for 600W power supply, this one fit the bill perfectly, quiet and solid performance, no issues to date!

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

    Rated 5 out of 5 stars

    Very quiet and powerful power supply

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

    My computer power supply died and I purchased this one. I installed it myself (very easy) and it works great--quiet and plenty of power. I would recommend this product highly,

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

    Rated 5 out of 5 stars

    Great product for a good price

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

    I needed to upgrade my power supply to support a new video card (needed for dual monitor support). The Geek Squad installed it and it provides all the power I need and is super quiet.

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

    Rated 4 out of 5 stars

    Power Supply Unit

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

    Fairly easy to install...installed into HP desktop pc. More than enough power to manage my system...4 Stars because of miner installation issues, definitely a PSU for a large tower...

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

    Rated 4 out of 5 stars

    Reliable for the price

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

    Solid, reliable power supply. Costs less than other brands but I've never had any issues and it supplies enough power for an i7 and a high end graphics card.

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

    Rated 4 out of 5 stars

    worked as expected

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

    this power supply was purchased to replace a failed power supply unit. Installation was easy and the power supply unit performed as expected. Problem solved!

    I would recommend this to a friend
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