---
product_id: 190174391
title: "ARRIS Surfboard SBG7400AC2-RB DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Approved for Comcast Xfinity, Cox, Charter Spectrum & more , Four 1 Gbps Ports , 800 Mbps Max Internet Speeds,- REFURBISHED"
brand: "commscope"
price: "$178.22"
currency: USD
in_stock: true
reviews_count: 7
category: "Amazon Renewed"
url: https://www.desertcart.us/products/190174391-arris-surfboard-sbg7400ac2-rb-docsis-3-0-cable-modem-ac2350
store_origin: US
region: United States of America
---

# DOCSIS 3.0 tech for blazing speeds Dual-band AC2350 Wi-Fi coverage Four 1 Gbps Ethernet ports ARRIS Surfboard SBG7400AC2-RB DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Approved for Comcast Xfinity, Cox, Charter Spectrum & more , Four 1 Gbps Ports , 800 Mbps Max Internet Speeds,- REFURBISHED

**Brand:** commscope
**Price:** $178.22
**Availability:** ✅ In Stock

## Summary

> 🚀 Own your speed, own your network — no rental, no limits!

## Quick Answers

- **What is this?** ARRIS Surfboard SBG7400AC2-RB DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Approved for Comcast Xfinity, Cox, Charter Spectrum & more , Four 1 Gbps Ports , 800 Mbps Max Internet Speeds,- REFURBISHED by commscope
- **How much does it cost?** $178.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/190174391-arris-surfboard-sbg7400ac2-rb-docsis-3-0-cable-modem-ac2350)

## Best For

- commscope enthusiasts

## Why This Product

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

## Key Features

- • **Save Big, Own It:** Cut cable rental fees by up to $168/year by owning your modem outright.
- • **Plug, Play & Control:** Easy setup with SURFboard Central App offers real-time device monitoring and parental controls.
- • **All-in-One Powerhouse:** Combines a DOCSIS 3.0 cable modem and AC2350 dual-band Wi-Fi router for ultimate convenience.
- • **Stream Without Limits:** Up to 800 Mbps internet speeds keep your entire smart home seamlessly connected.
- • **Carrier-Approved Compatibility:** Works flawlessly with Comcast Xfinity, Cox, Spectrum & more for hassle-free activation.

## Overview

The ARRIS Surfboard SBG7400AC2-RB is a professionally renewed DOCSIS 3.0 cable modem and AC2350 dual-band Wi-Fi router combo, delivering up to 800 Mbps internet speeds. Compatible with major U.S. cable providers like Comcast Xfinity, Cox, and Spectrum, it features four 1 Gbps Ethernet ports and an intuitive app for setup and network management. Save on rental fees while enjoying reliable, high-performance home connectivity.

## Description

Security, McAfee Secure Whole Home Internet with App to monitor and configure

Review: Good product, should have come with a manual though - I am fairly tech savvy so the lack of a manual was not too much of a hindrance, but I still wound up having to call their tech support line to get it set up. The tech was very friendly and helpful, and within 20 minutes we had my Internet connection up and running (including hold time), so no real complaints there. The device performs as advertised, and puts out great wifi signals at both 2.4 and 5.0 ghz. We run two smart TVs, a Ring doorbell, an Alexa, two laptops, 2-3 cellphones at any given moment, and someone is streaming most evenings and I have yet to notice any issues with signal quality. It is as good as my Comcast/Xfinity cable modem and saves me $14/month that I do not have to pay the cable company to rent theirs. I would buy again and recommend to others (just please make sure you include the manual next time!).
Review: used or not, this is a great value. - this product is super easy to use. the whole issue with connecting with a carrier is the carrier does not have your serial number - mac address of the modem. So, unless you tell Comcast or other carriers that you need to give them your mac address, for your own customer owned modem it will not be recognized with comcast or any other carrier. let it integrate into comcast's system so the carrier can recognize this unit. Then you need to get the BILLING department to xo your rental modem and ACITVATE your customer owned modem. this is why you hear the horror stories of why the modems cannot be activated. Don't be discouraged by the used part of this. These modems can work for years and years without an issue.

## Features

- RENEWED: This pre-owned product has been professionally inspected, tested and cleaned by desertcart qualified vendors.
- A Trusted Name in Home Connectivity: Get high speeds, better coverage, and a two-in-one product! With the ARRIS SURFboard SBG7400AC2 Wi-Fi Cable Modem, you will increase your network capability and get faster 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 3.0 is a reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
- Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network! Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
- Compatibility: The SURFboard SBG7400AC2 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved for cable internet speed plans up to 800 Mbps. Check your Internet Service Provider (ISP) website to confirm compatibility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07M5GKHTS |
| Best Sellers Rank | #23,236 in Electronics ( See Top 100 in Electronics ) #13 in Modem Router Combos #385 in Renewed Computers & Accessories |
| Customer Reviews | 4.1 4.1 out of 5 stars (674) |
| Date First Available | September 20, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.64 pounds |
| Item model number | SBG7400AC2-RB |
| Manufacturer | CommScope |
| Product Dimensions | 10 x 4 x 10 inches |

## Product Details

- **Brand:** Commscope
- **Color:** Black
- **Compatible Devices:** iPhone, cell phone, Tablet, computer, streaming devices, smart TV, IOT devices
- **Connectivity Technology:** Ethernet, Wi-Fi
- **Frequency Band Class:** Dual-Band
- **Included Components:** WiFi Modem, Quick Start Guide, power cord
- **Model Name:** SBG7400AC2-RB
- **Recommended Uses For Product:** Home
- **Special Feature:** WPS
- **Wireless Communication Standard:** 802.11ac

## Images

![ARRIS Surfboard SBG7400AC2-RB DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Approved for Comcast Xfinity, Cox, Charter Spectrum & more , Four 1 Gbps Ports , 800 Mbps Max Internet Speeds,- REFURBISHED - Image 1](https://m.media-amazon.com/images/I/81HX5hqzx2L.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work with 100mbps xfinity connection?**
A: Yes

**Q: What's the wifi range???**
A: The range is great. I get an excellent signal in my entire apartment

**Q: Will this  work with 600mbps xfintiy?**
A: I got better coverage the moment I took out the the xfinity modem and put the Arris in

**Q: How do you rename the network and set a new password?**
A: https://youtu.be/gJXrWyIfqQw

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product, should have come with a manual though
*by S***A on August 5, 2022*

I am fairly tech savvy so the lack of a manual was not too much of a hindrance, but I still wound up having to call their tech support line to get it set up. The tech was very friendly and helpful, and within 20 minutes we had my Internet connection up and running (including hold time), so no real complaints there. The device performs as advertised, and puts out great wifi signals at both 2.4 and 5.0 ghz. We run two smart TVs, a Ring doorbell, an Alexa, two laptops, 2-3 cellphones at any given moment, and someone is streaming most evenings and I have yet to notice any issues with signal quality. It is as good as my Comcast/Xfinity cable modem and saves me $14/month that I do not have to pay the cable company to rent theirs. I would buy again and recommend to others (just please make sure you include the manual next time!).

### ⭐⭐⭐⭐⭐ used or not, this is a great value.
*by R***S on May 23, 2024*

this product is super easy to use. the whole issue with connecting with a carrier is the carrier does not have your serial number - mac address of the modem. So, unless you tell Comcast or other carriers that you need to give them your mac address, for your own customer owned modem it will not be recognized with comcast or any other carrier. let it integrate into comcast's system so the carrier can recognize this unit. Then you need to get the BILLING department to xo your rental modem and ACITVATE your customer owned modem. this is why you hear the horror stories of why the modems cannot be activated. Don't be discouraged by the used part of this. These modems can work for years and years without an issue.

### ⭐ Easy Setup. No problems with Puma chipset.
*by C***L on December 1, 2020*

2/1/21 Update: I'm on my second refurb unit and the problem is the modem keeps disconnecting. MDD timeout happens every minute, probably because SINR and dbmV are too low. I'm certain the two refurb units are defective because my old modem works just fine with signals well within parameters and connection stable. Thank goodness for Amazon Prime return policy. Stick with buying a new one and not a refurb! So far so good for this refurb unit. Connectivity is a big improvement over my older surfboard SBG-6782. This newer 7400ac has more channels, appears more stable and responsive, and was easy to set up with Comcast/x-finity. I can’t comment on the Wi-Fi performance because I use a separate Ruckus R610 WAP which outperforms any combo router/modem/ap in my opinion. Programming was simple and standard for any Arris router/modem. Program your LAN IP address, set port firewall/port forwarding for your surveillance NVR, initiate modem online with Comcast, and I was all set and running after about 20mins. The only issue i had was slow speeds initially. That’s because the modem failed to update its firmware on the first attempt. Comcast updated the firmware remotely and my speeds are now consistently over 100Mbps. Very happy with this budget refurb unit, but it’s only been running for a week. Hope reliability is good and will update this review.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-16*