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Customer Ratings & Reviews

Your price for this item is $54.99

Customer reviews

Rating 4.7 out of 5 stars with 932 reviews

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Rating by feature

  • Quality

    Rating 4.1 out of 5 stars

  • Ease of Use

    Rating 4.1 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers consistently note the excellent battery life and reliability of the Back-UPS 450VA Network 40 UPS. Positive feedback also highlights its surge protection capabilities, ease of use, and reasonable price. While some users mentioned the unit's audible alarm and weight, the majority of reviews were overwhelmingly positive. The compact size and availability of outlets were also frequently praised.

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 932 reviews
  • Pros mentioned:
    Reliability

    Rated 5 out of 5 stars

    Does exactly what I expected it to do.

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

    I needed a replacement for my old UPS and this was my selection. It is working perfectly. Can't as for anything else.

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

    Great price

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

    The product is perfect for what I was looking for.

    I would recommend this to a friend
  • 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.

    GREAT PRODUCT, NEED IT FOR MY COMPUTER, IT MAKES ME WORK WITH PEACEFULLY AND KEEPS MY COMPUTER IN GREAT CONDITIONS.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Can not be beat for protecting equipment.

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

    This is replacing an older APS battery back up which finally died. I swear by these and they have not let me down.

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

    Rated 5 out of 5 stars

    Works great like the old one I had

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

    I had the 650 model for a long time and it finally went out. This one has less capacity, but works fine for me needs!

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

    Rated 5 out of 5 stars

    Good unit and trusted name at a good price

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

    Item is as expected, and sale price made a great value. Unit has performed well since purchase. It is excellent for home use.

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

    Rated 5 out of 5 stars

    Reliable and cheap

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

    Better be safe! I have it with my PlayStation 4 because with the summer crazy thunderstorm every 5min is a most.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Great BPS

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

    The Backup Power Supply works great. Haven't had problem with power surges or loses since I installed Backup UPS.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    APC Backup 450va

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

    This back up battery and surge protection are worth the money to protect your computers and other electronics.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    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.

    Great product. Gets the job done, good battery. Also happy with the option of having power switch with a master.

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

    Rated 5 out of 5 stars

    Great back up power source

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

    Very easy to hookup and use as a backup power source. It kicks on when we have a power low and the lights go dim.

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

    Rated 5 out of 5 stars

    great backup UPS

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

    Works perfectly! No more interruptions to internet service whenever there is a brownout! Very trustworthy brand.

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

    Works well

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

    It has served my purpose many times. We have a LOT of power outages, brown-outs, etc. Sometimes the power goes out for just a second. It's more than annoying! We are constantly resetting our clocks. Yes, I know...electric clocks have battery back up. I'm not replacing 9-volts constantly either. I just wish that these battery power packs lasted longer. I think all the outages take a toll on the batteries. I would recommend this and I would purchase it again.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Good

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

    We have had several storms with power surges and outages, and this product has been successful in keeping the computer on.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great UPS!

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

    I keep my modem on this battery power supply, kept my internet on during Hurricane Matt while power was out!

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

    Rated 5 out of 5 stars

    Worked perfectly

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

    The unit has worked as described. No problems or any issues of any sort. Plugged it in and there has been no concerns.

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

    Rated 5 out of 5 stars

    Works Great-Inexpensive Insurance for Storms

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

    Works Great-Inexpensive Insurance for Storms. Also works a surge suppressor. I have these on all of my PC's.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    I the power!

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

    I the power! A little more protection from electrical surges and a little more time to save in an outage. :)

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

    Rated 5 out of 5 stars

    Great little back up

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

    I use these little ups units to hold communications up on truck LACTs during power outages they work great

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

    Rated 5 out of 5 stars

    Great backup power protection

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

    This device is very reliable. After only one day it had already protected my computer from a power surge due to a storm.

    I would recommend this to a friend