Customer Ratings & Reviews

This modem is crazy fast!!! Worth the investment I bought this and the Netgear AX1800 wifi6 router. Between theb3.1 modem abd the wifi6 router.. Holy crap.. I ditched that garbage xfinity loaner that they charge to much for.. over quadruple my speeds..

I selected the ARRIS SURFboard S33 because it was one of the few modems on the market that is compatible with my Xfinity system. I learned of the SURFboard modem from my son-in-law, who found it was the only modem that gave reliable and fast WiFi speeds in his home. The modem is rated as fast as 2.5 Ghz/s. Installing the SURFboard along with an Eero MESH system raised my internet speeds from 50 MB/second with an xfinity gateway (modem/router) to 950 MB/second.

I am a previous SURFboard customer (back in the Motorola days) and wanted a modem that just works. This does the trick. I was moving into a new place and wanted to upgrade to a newer modem standard. Right out of the gate it is configured to bridge my Comcast connection (non of this NAT garbage) and worked instantly with my Unifi Edge Router, which was already configured on my previous older SURFboard modem. Total setup time was less than 10 minutes from boot to registration. Rock-solid and very fast so far.

Easy to setup and performs as advertised. Can’t ask for more.

It was easy to follow the directions to setup this modem. I turned it on and followed my provider’s directions for connecting. It took a few minutes, but worked like a charm.

Easy hook up good modem, Easy to connect works well compatible with Xfinity.

Great Cable modem and provides great fast speed and it was an easy setup

Best product easy installation fast speeds I don’t regret buying it

Bought this modem to replace my older Arris one. It’s been 2 months, and I have had “0” issues. That’s all I can ask out of a modem…. set up was a breeze.

Running great so far. Was easy to set up and takes up little space.

Great speed achieved and a nice compact size. I had the same experience as other reviewers in that my internet provider (RCN) was a little confounded by this brand new model of modem; make sure you get a persistent tech support person when setting up! My first one gave up and told me to call the manufacturer. After I got a better support rep, it seemed like after 45 minutes of them refreshing the connection on their end, the modem finally got with the program and everything has been working fine since.

Increased my internet speed and work well out of the box

Easy setup and the performance so far after 6 months has been perfect.. Two thumbs up..

Great product. Very easy to set up. And notice a difference from my previous modem!

Comcast made me upgrade my modem......I'm glad they did.....This modem works flawlessly and is super fast.

love it i got this with the nighthawk wow my internet is so much faster im getting the speed i pay for now and easy to setup

Fantastic speed out of this product. I could not be happier with it. The size is so compact, not sure how they fit so much in a small package.

Made my WiFi reach its full speed capacity now I do t lag at all

I owned a Motorola cable modem before this one and while it had many positive reviews in real world usage it was pretty terrible. When it finally stopped working I took it to BestBuy and was told that they didn't carry it any longer. I was given in store credit and bought this Arris modem based on what they had in the store. Its been rock solid ever since. I've been using this new modem for over a month and its been extremely reliable.

Best replacement for my Cox service. Get all the rated speeds of 1 gig down and 30 up until Fiber gets rolled out in my neighborhood.