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
€70
Price: $69.99
(as of Sep 30, 2025 01:45:51 UTC – Details)
Security, McAfee Secure Whole Home Internet with App to monitor and configure
RENEWED: This pre-owned product has been professionally inspected, tested and cleaned by Amazon 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.
Customers say
Customers find the cable modem and router to be a great unit that’s easy to set up and offers strong WiFi signals that extend throughout the house. They appreciate its speed and value for money, noting it saves them from monthly equipment fees. The functionality and connectivity receive mixed reviews – while some say it works well, others report issues with activation and connection problems. The reconditioning aspect also gets mixed feedback.
8 reviews for 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
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€70
C. Towne –
Great product
Best all in one router modem Iâve ever had! Works perfectly and gets great coverage range too. Setup was pretty easy as well. Would definitely recommend.
Cal –
Easy Setup. No problems with Puma chipset.
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 canât 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. Thatâs 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 itâs only been running for a week. Hope reliability is good and will update this review.
RS –
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.
Film Critic –
Worked Fine but came dirty
It worked fine and I did not have to engage my ISP to bring it online. I took off one star since it was dirty, not just dusty but I had to take a rag and a disinfecting cloth to bring it to a level that worked for me.
ROBERT L. –
Nice modem
Bought this as a refurbished item and it was like new…works as it should
M. Reid –
Works nicely….
This was a terrific purchase. I initially got one (another Arris) from Best Buy that didn’t have phone jack ports for a landline. I was subsequently informed that that comes on a more expensive unit since apparently landline modems are a thing of the past. In any case I needed one and found this one, love the price, installed the unit and Comcast was able to provision it so that it worked without any difficulty. Big win for me without spending the crazy sums of money required for a comparable model at a store like Best Buy!
JM –
Malfunctioning, no internet, no support, too late to return
I had high hopes to a battery backup 911 phone line, modem and router “all-in-one”, but this specific unit was a trasher and the manufacturer’s support was very bad.While it’s my fault that I didn’t try to install this before the deadline to return it, it reflects on Amazon’s refurbishment program that the device had serious problems when I got around to it (four months later). Could not connect to internet (after extensive diagnostics, including service provider’s technician spending an hour on it.) In addition, I couldn’t log in to the web-based settings framework. Ethernet didn’t register at all until after the first (of three) hardware resets. This couldn’t have all happened since Amazon shipped it, this strongly indicates that Amazon sent a broken product without properly testing it.The device itself has certain issues with the manufacturer – their web page for this product does not provide a link to the manual or firmware update(s). Arris has no excuse either.Lots of wasted hours by multiple people and interruption of an essential service – absolutely not acceptable.
Dudeguy –
Call Arris first for correct cable modem for your needs -Finally a WIFI cable modem that works
I have Xfinity as my provider who first recommended I blow 200 bucks on an Arris G36. Lost 160 bucks on that as by the time I installed it, too late to return. Then they recommended an Arris T25. Still have that dust collector as same deal, can’t return and no one will give me 20 bucks for it. Finally called Arris who knew their stuff and they recommended this WIFI model that I purchased for 65 bucks refurbished and works great. Arris customer service dudes seem to be from India but work in downtown Philadelphia. Don’t care as the folks at Xfinity are nice, don’t give me a hard time when I want to purchase a piece of equipment of my own but I lost around 400 bucks until I finally called Arris and knew exactly the model I needed. Long term, I’d save 15 bucks a month. It appears Iâm not the only person out there whose provider doesn’t have a clue. Moral of the story is to call Arris, tell them your provider and what devices you need and they will save you hundreds of bucks unless you try to install it right away and can return it. Anyone out there want an Arris T25 in mint condition? JK as I’ll post it again on Facebook’s Marketplace for 15 bucks and see what happens.