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Customer Ratings & Reviews

Your price for this item is $22.99
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Customer reviews

Rating 4.7 out of 5 stars with 324 reviews

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Rating by feature

  • Connection Quality

    Rating 4.8 out of 5 stars

  • Performance

    Rating 4.8 out of 5 stars

  • Setup

    Rating 4.7 out of 5 stars

Pros mentioned filter

Cons mentioned filter

94%would recommend to a friend

Customers are saying

Customers express satisfaction with the MB7621 cable modem's ease of use, performance, and setup process, frequently citing positive experiences with installation and speed. Many appreciate its compatibility with various routers and internet service providers, as well as its reasonable price. However, some users reported occasional connection issues and noted the lack of built-in Wi-Fi functionality. A few also mentioned the modem's size and the need for sufficient channels for optimal performance.

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 5 Showing 81-100 of 324 reviews
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    good modem

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

    Modem works well. Speeds are slightly slower than comcast modem but now I don't have to pay $13 a month to rent their modem! So this modem will pay for itself in a little over 5 months. The modem is very easy to hook up.

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

    Rated 5 out of 5 stars

    Good upgrade

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

    After upgrading my internet service from 100 to 200 megabits it was necessary to upgrade my modem. After doing some research this seemed to be the best choice to make. Download speeds were 120 with the old modem, with the new modem 250. Can't speak for the reliability I've only been using it for less than a month but so far so good. Price is very reasonable for an upgrade.

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

    Rated 5 out of 5 stars

    Connects great!

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

    Bought this to avoid rental fees. Works perfectly…..couldn’t be happier.

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

    Rated 5 out of 5 stars

    The thing that makes Wi-Fi work

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

    It does what it was built to do and works well. No issues

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

    Rated 5 out of 5 stars

    Best one

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I really loved it. Amazing product!! One of the best one.

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

    Rated 5 out of 5 stars

    Great modem for spectrum customers

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

    This works great. I have spectrum internet and kept having to reset the router/modem they give you so I went out and bought this and the google nest router and now my internet is super fast and never cuts out.

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

    Rated 5 out of 5 stars

    Good modem. Works very well on Comcast system.

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

    What's to say - it's a modem. It was easy to install and works perfectly with Comcast cable. It will pay for itself very quickly, so why pay to rent one?

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

    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.

    Cable man installed it, so I don't know how easy it is to install. I have had no complaints with my internet, since I purchased it. This makes me happy.

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

    Rated 4 out of 5 stars

    Supports Spectrum 400Mbps, but only DOCSIS 3.0

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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.

    Works well with Spectrum's 400Mbps service. Too bad it only has DOCSIS 3.0 rather than 3,1 as does the Moto MB8611 that I had to return because it was not "supported" by Spectrum. Can't have everything, I suppose. But at least I do get almost 400Mbps now vs a 6-year old Moto that was only providing 200+ Mbps. Fairly easy to install in about 15 minutes, including activation on Spectrum following their setup web page's instructions.

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

    Rated 4 out of 5 stars

    Pretty good for the money

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

    Bought this as an upgrade for internet. I didn’t want to rent from the provider. It worked as described and boosted my internet speed.

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

    Rated 5 out of 5 stars

    It works

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

    There's no drama or excitement to a modem. You just want it to work so you can forget about it. Right. This works, then you forget about it.

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

    Rated 5 out of 5 stars

    Easy to set up.

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

    Worked like it's supposed to. Easy to set up. Using it with a Linksys router. The price was good, to begin with, and I saved more by trading in my old modem.

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

    Rated 5 out of 5 stars

    Excellent modem.

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought this back in Dec 2020 since it has higher mbps than my former modem. So far so good, with no interruptions and my wifi has increased download speeds. Easy to set up too. Just need to talk to a person at your internet service provider (mine was Comcast) to establish the connection and you should be good to go.

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

    Rated 5 out of 5 stars

    Motorola cable modem

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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.

    This unit runs cooler than the xfinity combo we had. Easy to set up, but the instructions that come with don’t remind/recommend that you go into the unit and reset the user name and password. Very important for security. This will pay for itself with lower xfinity cost.

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

    Rated 5 out of 5 stars

    Needed to get new modem

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Since was cutting everything from the cable company needed to find a great modem to handle all my needs. So far no problem and runs fast

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

    Rated 4 out of 5 stars

    Awesome Docsis 3.0 cable modem

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

    Awesome Docsis 3.0 cable modem. I've just upgraded my old surfboard with this one. With a 600Mbps internet connection, I am getting the full throughput. Taking one start off because it is not wall mountable.

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

    Rated 4 out of 5 stars

    Good value choice

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

    Works well, easy to setup, good with my Comcast account.

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

    Rated 5 out of 5 stars

    Great modem for a good price

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Have this paired up to my google routers and the speeds and reliability have been really good. Can’t really complain about anything else as it’s just been reliable for me and my family. I tend to do a lot of gaming wireless and also at the same time my family is on their phones watching videos and streaming stuff.

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

    Rated 5 out of 5 stars

    Top value-per-dollar modem in 2021

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

    Somehow, it had been 6 years since I upgraded modems. This one jumped at me as the best option in my target range and I have not been disappointed. My internet speeds honestly tripled when I connected this modem. It's not the latest and greatest technology, but it does the work as I would expect.

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

    Our internet speed has drastically increased.

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

    Strong connection and good user interface. Reasonable price.

    I would recommend this to a friend