





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.
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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$8.99

Cliente Amazon –
Good savings
I have been using the router for a year and there has been no issue whatsoever. Strongly recommended. This also helped saving some bucks with the telecom provider.
John –
Great product
Fast shipping, great price, Fits as described, would buy again.
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 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.
RAUL r –
Simple modem
Prior to install modem did not have phone connection.
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 I’m 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.
Phoenix –
Much better speed than the Cable Company provides with their Cable Modem plus WiFi
Recommend to buy this item used or refurbished!!!It was said to restore to factory settings before attempting installation, which I heeded and I am glad I reset the Cable Modem. Now, for contacting your Cable Provider: You must provide the serial number and the MAC Address of the Cable Modem… I use Xfinity/Comcast in my area, where I used their app to register the cable modem… once recognized, it’s a matter of setting up the local area network if you are using the ethernet ports and then WiFi. Xfinity now tells you to only have 1 name for both bands (2.4GHz & 5GHz), but with this Cable modem you can keep two separate names for the bands or combine them. I have HomeKit items that are 2.4GHZ only, so I have two names… the other computing devices are on 5GHz N/AC and the speeds are great along with the coverage. I live in a 550sqft apartment with a thick wall dividing the bedroom from the living room, and all wifi routers have given me 1 less bar with devices in the bedroom… I stream music and take wifi calls when they come in, with no issues with this cable modem plus wifi.While not necessary for me to go to WiFi AX cable modem, the G34 used or refurbished is looking tempting?!? I’ll have to wait a few months though. To see pricing for higher than 100mbs down, which is fine for me! I’m not gaga about 4K video due to bandwidth caps of 1TB (1024GB) that Comcast/Xfinity has unless you pay more for unlimited bandwidth… I’m not a gamer! I do watch tons of Tech “how-to’s” on YouTube and entertain myself with Shows & Movies on AppleTV+ and of course “Work From Home” stuff.
ROBERT L. –
Nice modem
Bought this as a refurbished item and it was like new…works as it should
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.