Customer Ratings & Reviews
- Model:
- SB6121
- |
- SKU:
- 2836657
Customer reviews
Rating 4.6 out of 5 stars with 2915 reviews
(2,915 customer reviews)Rating by feature
- Performance4.6
Rating 4.6 out of 5 stars
- Ease of Use4.7
Rating 4.7 out of 5 stars
Customers are saying
Customers admire the SURFboard DOCSIS 3.0 High-Speed Cable Modem for its ease of use, performance, and affordability. Many appreciate the straightforward setup and compatibility with their internet providers, along with its compact size. While some experienced issues with the modem's WiFi capabilities and occasional overheating, the positive feedback on performance and ease of use outweighs these concerns for most users.
This summary was generated by AI based on customer reviews.
- Pros mentioned:Performance
Rated 5 out of 5 stars
Works Very good with COMCAST
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This is a nice little Modem. I switched from AT&T Uverse to Comcast. I wanted to buy a modem out right rather than paying lease every month. Even the Comcast installer said that these are one of the best modems to use. I have been using it for over a month now , It works good.
I would recommend this to a friend - Pros mentioned:Performance, Setup, Speed
Rated 5 out of 5 stars
Great Modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Easy to set up, runs perfect. No issues at all. Increased my internet speed to my maximum allowable speed, per my agreement with my cable company. Works fine with Time Waner.
I would recommend this to a friend - Pros mentioned:Ease of use, Price
Rated 5 out of 5 stars
Works Great. Plain and Simple.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Very good value. Just hooked it up following easy instructions, turned it on, gave it a few minutes to boot up, and it's been working flawlessly ever since. This cable modem-only is less expensive than the modem-wifi combo and is a newer design, so I decided to go separate, allowing better choices for each. Be aware that the status lights are very bright and the activity light continuously flashes, but no big deal.
I would recommend this to a friend - Pros mentioned:Ease of use
Rated 5 out of 5 stars
Perfect Xfinity replacement
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I have been paying $9 a month for forever to rent a modem when I was able to pick this one up for a good price and never have to pay it again. It was plug and play, removed the old one I was renting from the cable company and plugged this one right in. Highly recommended.
I would recommend this to a friend - Pros mentioned:Price
Rated 5 out of 5 stars
industry standard
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.looks like the massive numbers of reviews were positive, and the gadget is on the affordable side of the curve. pays for itself in terms of comparison to the leasing option from the cable company. have had it for 1 month, and i expect no problems. simple but necessary
I would recommend this to a friend - Pros mentioned:Ease of use, Speed
Rated 4 out of 5 stars
works great
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Wifi speed improved by 50%, easy to install and use
I would recommend this to a friend - Pros mentioned:Ease of use, Setup
Rated 4 out of 5 stars
update older modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Cox recommended this model. installation was easy.
I would recommend this to a friend - Pros mentioned:Performance, Speed
Rated 5 out of 5 stars
Save money on your bill
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Motorola is one of the best when it comes to cable modems and this version has proven to be solid and reliable with adequate speeds using DOCSIS 3.0 tech and 4 bonded channels up and down allowing for speeds of up to 100Mbps. Modem rental from our cable company was $8/mo. In 10 months we will have paid for this modem in monthly savings. Had an older version of a motorola surfboard modem that served me well for over 4 years. I have no reason to think this newer version will be any different.
I would recommend this to a friend - Pros mentioned:Setup, Speed
Rated 4 out of 5 stars
Motorola Modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Motorola Modem was easy to set up and upgraded speed
I would recommend this to a friend - Pros mentioned:Ease of use
Rated 5 out of 5 stars
Great Modem/Router for Comcast customer!
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Bought this to replace modem from comcast that I pay $10.00 a month. Its so easy to setup in less than 30 minuites. I called Comcast to provide new router name and pin number. I also returned my old modem so they wont bill me monthly anymore. I am very happy with it.
I would recommend this to a friend - Pros mentioned:Performance, Setup
Rated 5 out of 5 stars
Don't ever rent a modem again!
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Most cable companies will charge you $8-10 a month to rent a modem for your high speed internet. For the value of this product, there is no reason to do that! It uses the most recent broadband technology, so should stay current for numerous years. Set up was very simple, and easy to activate with Comcast. After several months, reliability has not been an issue. One thing to keep in mind: this does not have a built in wireless capability, so you will need a separate wireless router.
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
Fantastic
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This is so much better than my netgear modem that was only about a year old. At least three times faster and way more stable. No downtime since I purchased about a month and a half ago. For the price this is the cable modem if you're looking for fast and reliable.
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
Works perfectly with my Comcast service
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Purchased to replace the cable modem I was leasing from Comcast. Works perfectly and I can get over 100Mbps download speeds. Pays for itself within the first year.
I would recommend this to a friend - Pros mentioned:Speed
Rated 4 out of 5 stars
smooth and transparent
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I switched internet service from Verizon to Comcast, and my concern was the impact this could have on my daily work. Then I decided buy my own modem instead to rent one from Comcast and the transfer has been transparent and a I feel the modem made my job in the internet fast and smooth including a very easy installation.
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
Incredible speed
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.My old modem would download in mid 20 range and upload around 5 or so. This modem got me to 55plus and 6 plus, respectively. I did not call cable company to increase my bandwidth. This modem all by itself got me the increase. Totally worth the money. I'm impressed.
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Works Great!
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.After looking through reviews, I chose this modem. It has not reminded me of it's existance since it has been plugged in, just the way I like this type of device to treat me! Plug it in and your done...
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
great, inexpensive docsis 3 modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I already had one of these and needed another one for a friend's apartment. having had used one previously, it was a no brainer getting this unless i found a better cheaper option, which i didn't.
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
Great upgrade modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I upgrade to this Motorola Surfboard modem to replace a Mototola modem that was 6 years old and I ran speed tests and the upload and downloads speeds doubled, to 20 Mps which was beyond my expectations.
I would recommend this to a friend - Pros mentioned:Ease of use, Price
Rated 4 out of 5 stars
No issues
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Modem works as it should, no drop outs. Compatible with my provider and set up was easy. Saves from having to rent from the cable company, well worth it.
I would recommend this to a friend - Pros mentioned:Ease of use
Rated 5 out of 5 stars
Does everything it is supposed to do
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This works as I expected it to. Easy to set up, handles all the bandwidth Xfinity (Comcast) has to offer, and was cheaper than many alternatives. A bonus is that the lights are unobtrusive, unlike some others that look like they belong on an airport runway.
I would recommend this to a friend

