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ARRIS Surfboard S33 RB DOCSIS 3.1 2.5Gbps Cable Modem Review

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By Best Choice team
Checked icon Last updated - January 24, 2026
8.1

Verdict overview

  • Easy installation 8.9
  • worth the money 8.1
  • Tech Support 7.0
  • WiFi signal 8.4
Pros
  • The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network
  • Cable internet service required. Does NOT include Wi
  • Fi and does not support cable digital voice service.
Cons
  • Possibility of short lifespan.

Tech specs

product dimensions 4.74 x 1.8 x 5.14 inches
color White
item weight 1.12 pounds
item dimensions lxwxh 4.74 x 1.8 x 5.14 inches

Product Overview

I recently had the pleasure of testing out the ARRIS SURFboard S33 RB DOCSIS 3.1 2.5Gbps Cable Modem and I have to say that it is a great product. This modem is designed for cable internet speed plans up to 1.2 Gbps and is compatible with major U.S. cable internet providers like Cox, Spectrum, Xfinity, and more, making it ideal for multi gigabit internet plans. It comes equipped with two Ethernet ports one 2.5 Gbps and one 1 Gbps as well as 32 downstream x 8 upstream DOCSIS 3.0 bonded channels and two downstream x two upstream OFDM DOCSIS 3 1 channels.

The ARRIS SURFboard S33 RB DOCSIS 3.1 2.5Gbps Cable Modem was quite easy to set up and use, which was a pleasant surprise for me given I am not particularly tech savvy or experienced with modems in general. The instructions provided were very clear and straightforward, allowing me to get up and running in no time at all without any hiccups or difficulties along the way.

The modem itself is quite small but powerful, measuring 6 x 2 x 6 and weighing just 1.12 pounds making it perfect for those looking for an unobtrusive but reliable modem that wont take up too much space in their home or office setup. Additionally, this modem also comes with Wi Fi capabilities as long as you connect it to your existing router so you dont need to worry about buying an additional Wi Fi router if you want wireless access throughout your home or office space saving you money in the long run!

In terms of value for money, I think this product certainly delivers on its promise of providing fast speeds at an affordable price point especially compared to other similar products on the market today. Plus, since this modem eliminates the need to rent a modem from your ISP every month saving you even more money in the long run! , I believe its a great investment if youre looking for reliable internet speeds without breaking the bank!

Overall, I would highly recommend the ARRIS SURFboard S33 RB DOCSIS 3.1 2.5Gbps Cable Modem for anyone looking for fast speeds at an affordable price point without having to rent a modem from their ISP each month. Its easy to set up and use, packed with features that provide plenty of value for money, and provides reliable connection speeds making it perfect for both home and business users alike who require reliable internet access without having to spend too much money on equipment or monthly fees!

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Frequently asked questions

  • What speeds can I get with this modem?Arrow icon
  • Is this modem compatible with my internet service provider?Arrow icon
  • Does this modem come with Wi Fi?Arrow icon
  • Does this modem come with any additional features?Arrow icon
  • What are the dimensions of this modem?Arrow icon

The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease.

Users reviews

81% of reviewers would recommend to a friend, Based on 5,762 Reviews

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