---
product_id: 356177582
title: "ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty"
brand: "arris"
price: "R$4566"
currency: BRL
in_stock: true
reviews_count: 5
category: "Arris"
url: https://www.desertcart.com.br/products/356177582-arris-s33-cable-modem-fast-docsis-3-1-multi-gigabit
store_origin: BR
region: Brazil
---

# 2.5 Gbps max speed DOCSIS 3.1 tech 2-year warranty ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty

**Brand:** arris
**Price:** R$4566
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock lightning-fast internet speeds and ditch rental fees forever!

## Quick Answers

- **What is this?** ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty by arris
- **How much does it cost?** R$4566 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/356177582-arris-s33-cable-modem-fast-docsis-3-1-multi-gigabit)

## Best For

- arris enthusiasts

## Why This Product

- Trusted arris brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Save Big, Own It:** Cut rental fees and save up to $168/year by owning your modem
- • **Dual Ethernet Ports:** 1 x 2.5 Gbps + 1 x 1 Gbps for versatile connectivity
- • **Next-Gen DOCSIS 3.1:** 10x faster than DOCSIS 3.0, future-proof your home network
- • **Plug & Play Simplicity:** Easy setup with SURFboard Central App and broad ISP compatibility
- • **Blazing Multi-Gig Speeds:** Up to 2.5 Gbps Ethernet port for ultra-fast streaming & gaming

## Overview

The ARRIS SURFboard S33 is a DOCSIS 3.1 cable modem designed for multi-gigabit internet plans up to 2.5 Gbps. Featuring dual Ethernet ports (2.5 Gbps and 1 Gbps), it delivers blazing fast, reliable connectivity compatible with major U.S. ISPs like Comcast Xfinity, Cox, and Spectrum. With a 2-year warranty and easy plug-and-play setup via the SURFboard Central App, it’s the smart choice for professionals seeking future-proof, high-performance home networking while saving on rental fees.

## Description

Your multi-Gigabit home network will be ready with the SURFboard S33. A DOCSIS 3.1 cable modem. With a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port it's capable of combined download speeds up to 3.5 Gbps. The S33 is the fastest modem in the SURFboard lineup delivering the fastest speeds and the latest technology without the premium rental cost.

Review: This is my second time buying the ARRIS S33 DOCSIS 3.1 multi-gigabit cable modem—because lightning apparently decided my internet setup was too good and struck down my first one like Zeus himself was having a bad day. RIP, my beloved modem, you lasted just long enough to show me what true speed feels like before being vaporized in a flash. But honestly? I’m not mad. The ARRIS S33 is a beast. It supports DOCSIS 3.1, meaning it’s ready for the next-generation high-speed cable internet—like, up to 2 Gbps downstream and 1 Gbps upstream (if your ISP and plan are playing along). It’s also backwards compatible with DOCSIS 3.0, so if your ISP hasn’t fully upgraded yet, no worries. Installation is impressively painless. Plug and play, with support for IPv4 and IPv6, and it handles channel bonding like a champ—aggregating multiple channels to maximize throughput and minimize lag. I’ve thrown all kinds of traffic at it: 4K Netflix, intense online gaming sessions, video calls where my face looks mostly presentable, and it doesn’t even break a sweat. The only caveat: lightning doesn’t play nice with electronics. So if you live somewhere prone to storms like me, consider a surge protector or UPS, unless you want to keep buying backup modems like this is a weird hobby. Bottom line: the ARRIS S33 is fast, reliable, and future-proof enough to handle whatever Comcast Xfinity throws at it. Just pray to the weather gods to keep your modem alive.
Review: Nice modem to use with Xfinity if you don't want to use their modem. I have it hooked up to my Orbi Mesh Router and it works as it should work and connects easily to ORBI

## Features

- A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard S33 DOCSIS 3.1 Cable Modem is designed to bring you superior connectivity, increase your network capability and provide faster streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing. .Dedicated Customer Support: Live Chat and Phone Support available 8am -1am EST.Warranty Provided by ARRIS: Product ships with 2-Year Limited Warranty.
- Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
- Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
- Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
- Compatibility: The SURFboard S33 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 2.5-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility..What's in the Box: When you purchase you will get an ARRIS SURFboard S33 Cable Modem, Power Supply, Quick-Start guide, and 2-year warranty card..Ethernet Ports: Has one 2.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08FMSC5WZ |
| Are Batteries Included | No |
| Brand | ARRIS |
| Color | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (3,740) |
| Date First Available | 28 October 2020 |
| Item Weight | 408 g |
| Item model number | S33 |
| Manufacturer | CommScope |
| Number of Ethernet Ports | 2 |
| Product Dimensions | 12.04 x 4.57 x 13.06 cm; 408.23 g |
| Series | S33 |
| Wattage | 120 watts |

## Product Details

- **Brand:** ARRIS
- **Compatible devices:** Ethernet Connected Devices, Personal Computer, Computer Router
- **Connectivity technology:** Ethernet
- **Internet service provider:** Cox
- **Product dimensions:** 13.1L x 4.6W x 12H centimeters

## Images

![ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty - Image 1](https://m.media-amazon.com/images/I/41VU+PfcQeL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Can you use both ethernet ports at the exact same time?**
A: Depends on your ISP. The company I work for gives you 2 public IP addresses and you can get any combo of 2 computers, 1 computer and one router or 2 routers. You WILL NOT however get full speed on both at the same time but not half either. The modems we use now have only one ethernet port but if you hook up a simple switch you get both IPs through it. But ONLY 2.

**Q: Will this support xfinity extreme 1200mbps ? it's not on the supported device list.**
A: The Arris S33 is a DOCIS 3.1 capable device 32 x 8 rated for speeds up to 2.5 Gb. While the modem is indeed on Xfinity supported device list (check detailed discussions on dslreports.com), what matters is your router. Ensure you have a router capable of 1+Gb speeds.

**Q: Does this modem support snmp?**
A: NO.  I wish that wasn't the case, but we have no SNMP access.  No Arris home modems support user facing SNMP. The cable provider has management, but SNMP isn't exposed to the home network.    From Arris: "SNMP (Simple Network Management Protocol) is not supported in Motorola Home Networking products. SNMP is included in Motorola Cable Modem and Home Gateway products, but it is intended for use only by the Cable Provider. There is no direct access to SNMP MIBs for the end-user."

**Q: Is one port for the router and the other port can be used for hardwiring a device (computer, etc) directly to modem?**
A: The second port can only be used if connected to a separate/different IP. In other words, your ISP will have to give you 2 separate IPs. in order to use the second port.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***T on 22 September 2025*

This is my second time buying the ARRIS S33 DOCSIS 3.1 multi-gigabit cable modem—because lightning apparently decided my internet setup was too good and struck down my first one like Zeus himself was having a bad day. RIP, my beloved modem, you lasted just long enough to show me what true speed feels like before being vaporized in a flash. But honestly? I’m not mad. The ARRIS S33 is a beast. It supports DOCSIS 3.1, meaning it’s ready for the next-generation high-speed cable internet—like, up to 2 Gbps downstream and 1 Gbps upstream (if your ISP and plan are playing along). It’s also backwards compatible with DOCSIS 3.0, so if your ISP hasn’t fully upgraded yet, no worries. Installation is impressively painless. Plug and play, with support for IPv4 and IPv6, and it handles channel bonding like a champ—aggregating multiple channels to maximize throughput and minimize lag. I’ve thrown all kinds of traffic at it: 4K Netflix, intense online gaming sessions, video calls where my face looks mostly presentable, and it doesn’t even break a sweat. The only caveat: lightning doesn’t play nice with electronics. So if you live somewhere prone to storms like me, consider a surge protector or UPS, unless you want to keep buying backup modems like this is a weird hobby. Bottom line: the ARRIS S33 is fast, reliable, and future-proof enough to handle whatever Comcast Xfinity throws at it. Just pray to the weather gods to keep your modem alive.

### ⭐⭐⭐⭐⭐ Review
*by R***R on 10 January 2026*

Nice modem to use with Xfinity if you don't want to use their modem. I have it hooked up to my Orbi Mesh Router and it works as it should work and connects easily to ORBI

### ⭐ Review
*by A***R on 4 January 2024*

This Arris Surfboard S33 modem runs extremely, extremely HOT 🔥🔥🔥! The coverage is sporadic and glitches out to my router all the time. My Asus router works fine. Arris has a problem with this modem overheating. It does not vent well. It desperately needs revisioning. Start over, do it right! Don't cheap out on your customer to save a few pennies. They keep your business in business. Heat sinks or an internal fan or both need to be implemented and utilized. A better case to allow for improved air flow should also be considered. Arris must know about this design flaw and be okay with it. The modem will just eventually burn itself out. Electronics will eventually break down by continuous heat and overheating. This is just hot to the touch, and it is unacceptable. I am very unhappy with this company and their modem. It could even possibly be a fire hazard. I give it a negative rating and negative stars. I do not endorse this hunk of junk by Arris. Choose another company. There are so many other better options available. Learn from my mistake. This is a terrible excuse for what a modem should be. Update 1-10-24 This is the most dismal, disappointing modem that I have ever owned constantly dropping the connection. This morning, I had no connection to the internet. I had to unplug everything. I thought maybe if I rebooted the modem and waited 30 minutes and then plugged it back in, it might help clear it. IT DID NOT! I'm getting abysmal download speeds of 2 and 3 mb/s. It finally, finally connected to my router and 2 and 3 mb download speeds is what I have. It did not want to connect. This is an expensive disaster and Arris should be ashamed of the absolute inferior quality product they are putting out to the public right now. Absolutely enraged! 🤬 I'll be returning this item. I hope nobody buys this as a used modem.

## Frequently Bought Together

- ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 2 Year Warranty - (No Built-in Wifi)
- Introducing Amazon eero 7 dual-band mesh Wi-Fi 7 router (newest model) - Supports internet plans up to 2.5 Gbps, Coverage up to 6,000 sq. ft., 3-pack

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/356177582-arris-s33-cable-modem-fast-docsis-3-1-multi-gigabit](https://www.desertcart.com.br/products/356177582-arris-s33-cable-modem-fast-docsis-3-1-multi-gigabit)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-21*