---
product_id: 769406037
title: "(SBG8300-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi,Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds, 4 OFDM Channels - Renewed"
brand: "arris"
price: "1269 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Arris"
url: https://www.desertcart.pl/products/769406037-sbg8300-rb-cable-modem-router-combo-fast-docsis-3-1
store_origin: PL
region: Poland
---

# DOCSIS 3.1 tech - 10x faster speeds AC2350 WiFi - ultra-fast wireless 4 Gigabit Ethernet ports - wired power (SBG8300-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi,Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds, 4 OFDM Channels - Renewed

**Brand:** arris
**Price:** 1269 zł
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock Gigabit Speeds & WiFi Freedom — Your Network’s New MVP

## Quick Answers

- **What is this?** (SBG8300-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi,Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds, 4 OFDM Channels - Renewed by arris
- **How much does it cost?** 1269 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/769406037-sbg8300-rb-cable-modem-router-combo-fast-docsis-3-1)

## 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 trusted ARRIS modem
- • **Multi-Device Ready:** Four Gigabit Ethernet ports ensure lag-free wired connections for all your essentials 🔌
- • **Dual-Role Powerhouse:** Combine modem and AC2350 WiFi router in one sleek device for seamless connectivity 📶
- • **Trusted Compatibility:** Certified for Comcast Xfinity, Cox, Spectrum & more—join millions upgrading their home network
- • **Blazing Fast DOCSIS 3.1:** Experience next-gen internet speeds up to 1 Gbps with cutting-edge cable tech ⚡

## Overview

The ARRIS SBG8300-RB is a renewed DOCSIS 3.1 cable modem router combo delivering up to 1 Gbps internet speeds with AC2350 WiFi. It supports major US cable providers like Comcast Xfinity, Cox, and Spectrum, featuring 4 Gigabit Ethernet ports and advanced channel bonding for ultra-reliable, high-speed home networking. Save on rental fees and future-proof your connection with this trusted, high-performance device.

## Description

The SURFboard SBG8300 is a DOCSIS 3.1 Wi-Fi cable modem, the latest standard offered by cable internet providers. It's capable of bonding up to 32 downstream and 8 upstream DOCSIS 3.0 channels or 2 x 2 OFDM DOCSIS 3.1 channels, providing increased bandwidth for true gigabit speed capability. The SBG8300 combines a DOCSIS 3.1 cable modem and an 802.11ac Wi-Fi router with 4 Gigabit Ethernet ports, in one, powerful device.

Review: Great way to save the lease fee Comcast wants to charge. Works great with XFinity Internet. Setup was a breeze. I did have an issue with my wi-fi printers dropping out. I would have to restart my desktop computer for them to connect again. I called Tech support, the gentleman was very knowledgeable and resolved the issue with a setting in the admin section. Printers have not dropped out since.
Review: So far it's working better than the product I was renting from Xfinity. My only issue, is that it would not connect through the app I was directed to use for set up, even though all of my devices were connected, so I had to contact Xfinity which is never fun.

## Features

- Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Frontier or other Fiber Optic, DSL or Satellite internet service providers.
- Does NOT support cable digital voice service.
- A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the ARRIS SURFboard SBG8300-RB Wi-Fi Cable Modem, you will increase your network capability and get ultra-fast streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing.
- 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).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B098PFNQV3 |
| Are Batteries Included | No |
| Brand | ARRIS |
| Colour | Black |
| Connectivity Type | Wi-Fi |
| Customer Reviews | 4.0 4.0 out of 5 stars (823) |
| Date First Available | 6 Oct. 2022 |
| Guaranteed software updates until | unknown |
| Item Weight | 907 g |
| Item model number | SBG8300 |
| Manufacturer | CommScope |
| Number of Ethernet Ports | 4 |
| Operating System | Linux |
| Product Dimensions | 7.29 x 20.32 x 23.7 cm; 907.18 g |
| Series | SBG8300-RB REFURBISHED |
| Wireless Type | 802.11ac |

## Product Details

- **Brand:** ARRIS
- **Compatible devices:** Personal Computer, Smart Television
- **Connectivity technology:** Ethernet
- **Internet service provider:** Cox
- **Product dimensions:** 27.9L x 10.2W x 30.5H centimetres

## Images

![(SBG8300-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi,Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds, 4 OFDM Channels - Renewed - Image 1](https://m.media-amazon.com/images/I/61LnBKAPVAL.jpg)

## Questions & Answers

**Q: Is it compatable/approved with/for Xfinity?**
A: The Arris S33 Docsis 3.1 modem is currently only compatible with the 1.2GBPS Internet Plan with Xfinity but they say they are working on support for their Gig 2X plan that allows 2GBPS download and 400mbps upload at the moment, but this internet plan is not available yet for 3rd party modems. You have to rent their modem monthly to use the Gig 2X plan right now. They do not have a timeline yet, but I believe that the firmware update from Xfinity will be available VERY soon so that "MidSplit" works with their service. The Arris S33 modem IS compatible with MidSplit...Xfinity just needs to finish testing for third party modems and send a firmware update to existing customers so they can take advantage of the MidSplit feature and get 2GBPS internet without having to rent their shoddy equipment.

**Q: What is the Warranty**
A: ARRIS offers a 2 year limited warranty on new models, 1 year for refurbished products.

**Q: was the Mac address release from previous device owner account? What happens if not?**
A: It depends on the backend provisioning system of your internet service provider. Ideally, you should be able to use a used/refurb device provided the service provider's provisioning system automatically removes the previous owner's information from the device

**Q: When does the certificate expire?**
A: The DOCSIS certificate. It's rated as 3.1. Comcast is expiring the ones that are 3.0. So I think this one should be good until the next security upgrade in a few years. Hard to say for sure. My Zoom is 3.0 and it was made back in 2014. Only just now being "expired."

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***D on 5 September 2024*

Great way to save the lease fee Comcast wants to charge. Works great with XFinity Internet. Setup was a breeze. I did have an issue with my wi-fi printers dropping out. I would have to restart my desktop computer for them to connect again. I called Tech support, the gentleman was very knowledgeable and resolved the issue with a setting in the admin section. Printers have not dropped out since.

### ⭐⭐⭐⭐⭐ Review
*by A***W on 29 February 2024*

So far it's working better than the product I was renting from Xfinity. My only issue, is that it would not connect through the app I was directed to use for set up, even though all of my devices were connected, so I had to contact Xfinity which is never fun.

### ⭐ Review
*by P***R on 18 July 2025*

THERE'S NO PHYSICAL WPS BUTTON and no owners manual was included. Apparently, a senior citizen such as myself now needs a degree in electronic engineering in order to pair my printer and wifi extenders. In order to pair, it is necessary to press the reset button for 30 seconds, and enter the service menu using ''admin'' and '' password'', which it won't accept. It says its the WRONG PASSWORD. it worked fine for us until I needed to print something, then when my new wifi extenders arrived and I was unable to pair them, that's when I decided to return the darned thing. It's a shame- it had a strong output signal, but still not strong enough to reach my security cameras 150 feet away. Which is why I need powerful range extenders.

## Frequently Bought Together

- ARRIS (SBG8300-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi,Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds, 4 OFDM Channels - Renewed
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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-29*