Customer Ratings & Reviews

This was easy setup with Spectrum so I don't have to rent a modem. It is pulling faster speeds than my 400mbps service and works great with a mesh network.

Setup was quick and easy and connection has been good. Read the box carefully as it shows you limitations based on your provider.

I had to replace the same model with this one because the Ethernet port burned out. They clearly don't last forever. However, they do get your cable company off your back and should have an ROI of 1-2 years depending on your rental costs. Also, they are great to put in front of a router that you like.

Comcast said, they no longer support Surfboard 5121 this replacement is on the list of supported devices so I ordered this one. The tech description matches the more expensive cable modems so cost and specs drove my purchase.

Excellent piece of tech gear for the price. Replaced outdated modem router combo from internet provider. Great for streaming live sporting events very little to no buffering it is Night and day over old equipment

This cable modem does the job and never gives me a problem. It delivers the speed promised by my cable service, so I don't think I could ask for anything more. It just works.

I bought this for my Xfinity/Comcast broadband service as a replacement to the leased modem. It works just as well as the one I had been leasing and has been working fine so far. I have had this for about 2 months so far. Saves me money on my internet bill as I don't need to lease their huge modem this one is less than half the size.

I replaced my old Arris Surfboard which was 10 years old to this new SB6190 and so far so good!

Good price , just what I was looking for.... Unfortunately 2 of the stores I went to were sold out and no one could give me a date when the next order would be delivered.

This modem is easy to set up. With Comcast there is a website that pops up automatically to activate it with your service, so I didn't even need to call in. Buy this and save a little by no longer renting from the cable company.

We switched to Comcast from frontier and got this to avoid monthly rental charges. We have Nest Mesh and this combined with that has worked great! Pretty easy to set up

I really can't provide a review based on it's performance because I never opened the box. I am sure this modem is excellent, but as a Spectrum Internet customer, they gave me one at no charge. I am finding the Spectrum modem to work extremely well so I returned the one I purchased from Best Buy.

I bought this because I need the most of my internet speed and I read the reviews so I decided to try it. It's pretty awesome! My internet speed picked up dramatically so if you're in need to make the most of your internet, try this out.

I have enjoyed this modem for the past few months. Gives me the maximum speed i can acheive.

I needed to upgrade my modem in order to upgrade the speed of my broadband (Spectrum). This modem was easy to set up. Spectrum recognized it right away. It's working flawlessly so far.

The Surfboard line of modems has served me well for many years. Recently upgraded to this one from the previous model which I ran pretty much continuously for 5 years before it started to act up.

Plugged it in and it works great. We have 4 people on phones and computers ,tv and dont have high speed internet and it does not buffer at so far.

I bought the modem and the night hawk x10 together I did a speed test both before and after. I gained on average with this combo of 10mb down load and 4mb upload. Much faster modem than what Spectrum’s gives you.

This modem performs excellently! I have so many internet operated devices in my home I found it necessary to find a high performing modem. The Arris came highly recommended by my ADT tech and my home surveillance installer. Great product...

My old modem was 5 years old and a little behind the times. Thought it went out but it was the cable company's problem not the modem. I kept this one anyway because it seems lag and buffering have gotten better with this modem.