---
product_id: 421343764
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: "C$32373"
currency: NIO
in_stock: true
reviews_count: 5
category: "Arris"
url: https://www.desertcart.ni/products/421343764-arris-s33-cable-modem-fast-docsis-3-1-multi-gigabit
store_origin: NI
region: Nicaragua
---

# 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:** C$32373
**Availability:** ✅ In Stock

## Summary

> 🚀 Own the fastest lane with ARRIS S33 – speed, savings, and security in one sleek modem!

## 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?** C$32373 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/421343764-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

- • **Next-Gen DOCSIS 3.1:** Cutting-edge cable tech delivering 10x faster speeds and reduced lag for a future-proof network.
- • **Plug & Play Simplicity:** Effortless setup with SURFboard Central App gets you online in minutes, no tech headaches.
- • **Blazing Multi-Gig Speeds:** Experience ultra-fast 2.5 Gbps Ethernet for seamless streaming, gaming, and remote work.
- • **Save Big, Own Your Modem:** Slash up to $168/year by ditching rental fees—your wallet will thank you.
- • **Universal ISP Compatibility:** Works flawlessly with Comcast Xfinity, Cox, Spectrum & more—no compatibility guesswork.

## Overview

The ARRIS SURFboard S33 is a DOCSIS 3.1 cable modem featuring a 2.5 Gbps Ethernet port plus a 1 Gbps port, enabling combined speeds up to 3.5 Gbps. Compatible with major U.S. cable providers like Comcast Xfinity, Cox, and Spectrum, it offers next-gen technology that reduces lag and boosts security. With a simple app-based setup and a 2-year warranty, it’s designed to save users up to $168 annually by eliminating rental fees while future-proofing home networks.

## 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: Round Two for the ARRIS S33: Lightning Struck My First One, But I’m Still Hooked
Review: Best modem I've found. A brand I've used for many years.

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08FMSC5WZ |
| Best Sellers Rank | 211,524 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 85 in Modems |
| Box Contents | SURFboard S33 DOCSIS 3.1 Cable Modem - AMZ |
| Brand | ARRIS |
| Brand Name | ARRIS |
| Colour | White |
| Compatible Devices | Ethernet Connected Devices, Personal Computer, Computer Router |
| Compatible devices | Ethernet Connected Devices, Personal Computer, Computer Router |
| Connectivity technology | Ethernet |
| Customer Reviews | 4.1 out of 5 stars 3,740 Reviews |
| Data Transfer Rate | 2.5 Gigabits Per Second |
| Internet Service Provider | Comcast Xfinity, Cox, Spectrum |
| Internet service provider | Comcast Xfinity, Cox, Spectrum |
| Item Dimensions L x W x H | 13.1L x 4.6W x 12H centimetres |
| Item Type Name | Docsis 3.1 Modem |
| Item Weight | 408 g |
| Manufacturer | CommScope |
| Maximum Downstream Data Transfer Rate | 2500 Megabits Per Second |
| Maximum Upstream Data Transfer Rate | 1000 Megabits Per Second |
| Modem Type | Cable |
| Network Connectivity Technology | Ethernet |
| Number of Ethernet Ports | 2 |
| Number of Ports | 2 |
| Product dimensions | 13.1L x 4.6W x 12H centimetres |
| UPC | 612572216804 |
| Unit Count | 1.0 Count |

## Product Details

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

## 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

### ⭐⭐⭐⭐⭐ Round Two for the ARRIS S33: Lightning Struck My First One, But I’m Still Hooked
*by D***T on 22 September 2025*



### ⭐⭐⭐⭐⭐ Best modem I've found. A brand I've used for many years.
*by M***N on 1 February 2026*



### ⭐ The Surfboard S33 is a very problematic modem by ARRIS.
*by A***R on 4 January 2024*



## 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

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-09*