Get a perfect compliment to your Wi-Fi router with this Arris SURFboard T25 cable modem. Two Gigabit Ethernet ports allow for fast connection speeds to Wi-Fi routers or other wired devices, and dual telephony ports provide convenient digital voice support. This Arris SURFboard T25 cable modem can bond to two upstream and two downstream DOCSIS 3.1 channels to help achieve true gigabit download speeds.
Q: What is the maximum wired speed this Arris Surfboard cable modem supports?
A: This Arris Surfboard cable modem supports a wired speed of up to 1000 megabits per second.
Q: Which internet service provider is this Arris Surfboard cable modem compatible with?
A: This Arris Surfboard cable modem is certified to work with Xfinity from Comcast.
Q: Does this Arris Surfboard cable modem have gigabit ethernet speed?
A: Yes, this Arris Surfboard cable modem offers gigabit ethernet speed.
Q: What type of technology does this Arris Surfboard cable modem use?
A: This Arris Surfboard cable modem utilizes DOCSIS 3.1 technology.
Q: How many LAN ports does the Arris Surfboard cable modem have?
A: The Arris Surfboard cable modem is equipped with two LAN ports.
Q: Does this work with Optimum ? Will the Voip telephony work with the Optimum service?
A: This IS NOT. working with Optimum voice. I have been on the phone all weekend trying to get it to work. How did you get it to work?
Q: Does this modem have WiFi built in
A: This modem does not have a built in wifi.
A: I returned mine, it would disconnect daily, it still uses the puma chipset

Get a perfect compliment to your Wi-Fi router with this Arris SURFboard T25 cable modem. Two Gigabit Ethernet ports allow for fast connection speeds to Wi-Fi routers or other wired devices, and dual telephony ports provide convenient digital voice support. This Arris SURFboard T25 cable modem can bond to two upstream and two downstream DOCSIS 3.1 channels to help achieve true gigabit download speeds.

Multi-gigabit speeds for your home network. The SURFboard G36 is a DOCSIS 3.1 Cable Modem & Wi-Fi 6 Router combo. Stream 4K content smoothly, game without interruptions or slowdowns. It features a 2.5 Gbps Ethernt port for multi-gig networking PLUS four 1-Gigabit Ethernet ports to connect all your devices. The SURFboard G36 is compatible with major U.S. cable internet service providers and is best for speed plans up to 2.5 Gbps. The compatible SURFboard Central app simplifies setup and management of your network.

The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is capable of delivering true Gigabit speeds. It's approved for use with Cox, Spectrum, Xfinity and others supporting cable internet speed plans up to 1 Gbps. Upgrading your home network starts with your modem.
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| Cons for ARRIS - SURFboard DOCSIS 3.1 Cable Modem for Xfinity Internet & Voice - Black | |||
Customers love the SURFboard DOCSIS 3.1 Cable Modem's ease of use, excellent performance, and straightforward setup process. Many appreciate its compatibility with Xfinity and other providers, along with its reasonable price point. While some wish for built-in WiFi, the modem's performance is frequently praised. Overall, the positive feedback highlights its value and effectiveness.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
This modem was exactly what I was looking for and I love the look of it as well as how the lights on the front aren’t super bright either. Runs pretty cool and gets me more than enough speed. I have a 600 MB plan and when doing an Xfinity speed test connected directly to my Linksys router, I actually get over 600 MB with the test. On my phone, I get up to 450 MB with an iPhone 11 Pro, Downloading anything is even faster now and much smoother no matter the file size. Setting up the modem was also relatively easy. At least for me, I was able to set it up through the Xfinity app without having to talk to anybody at all. There are 2 gigabit outputs on the back and the second one you do have to contact xfinity to get it activated. But at the moment, I have enough hook ups with my router so I didn’t bother with that yet. Also I don’t have an actual phone to hook up to it yet, but the phone icon is lit up on it and I have a phone number which it shows through the app, so I’m assuming I’m all ready to go if I want to hook a phone up to it. So it’s nice to know I have that option now if I ever need it. I don’t currently work from home, so I don’t need it at the moment. Definitely recommend though and worth the money. It’s also 3.1 DOCSIS so at least you’ll be set for awhile with this one even if you don’t need it right now. It will get you all the speed you need and comes with 2 VOIP phone jacks and 2 Gigabit ports which is nice.
Posted by MusicFi117
Ever since it was installed, there was a big difference in speed over my old router. It has been very solid performer with my Comcast Extreme Pro speed (600 Mbps).
Posted by SVTRACER
Comcast upgraded my Blast! speeds from 200 Mbit to 300 Mbit so I needed a new eMTA. I wanted DOCSIS 3.1, so this was my best option. I am now getting the speeds that are advertised. I had to call Comcast to get it activated, but that didn't take much time. All I had to do was give them the MAC address from the bottom of the modem.
Posted by SuperGotenks