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Your cart is empty.Product Description
The smart choice for your cable Internet service
Eliminate monthly cable modem rental fees – Typically saves 156 dollars per year in Xfinity cable modem rental fees. Actual savings depend on your service provider.
300+ Mbps – Maximum actual Internet download speed.
GigE Ethernet port – For a high-speed wired connection to any router, computer, or other Internet-capable device.
Connect any WiFi router you choose
Plugs easily into any router for shared Internet access by all your WiFi and Ethernet-capable devices. This flexible approach lets you pair this cable modem with any router you choose for your WiFi needs, including a mesh router or gaming router.
If the MB7420’s Ethernet port isn’t used for a router, it can plug into a computer, HDTV, game station, or other Ethernet device.
Compatible with Most Cable Providers
Certified by Comcast Xfinity, Cox, Charter Spectrum, and other cable providers.*†
*Not compatible with Verizon, AT&T, CenturyLink, and other fiber optic, satellite, or DSL services.
† This cable modem does not have telephone jacks for the support of voice calls.
Fast Internet Speed
For other service providers, supported service speeds are similar to Comcast.
Easy Setup
Connects fast with just 3 connections – power, coax cable, and Ethernet.
M11
Reviewed in the United States on August 29, 2021
My old modem, an Arris, was starting to give off a slight burning smell. It was seven years old, so it seemed like a good idea to replace it before it caused more problems. It was also slowing, but it could have been the ISP or router. This modem had good enough specs for my 50mb service. It has outperformed my old modem, even though the old one had similar performance on speed tests. Even though this is not formally faster, it works better. Pages load faster and streaming is smoother. It's a good upgrade. The lights are also more subdued than the old Arris modem, which was too bright.EDIT: Although I was happy with the modem' s performance, I was not happy with the strong odor emitted by the modem once it operated for a few hours and heated up. I thought at first it was part of the normal off-gassing process, but it was much stronger than that and didn't improve after a few days of use. It gave me a bad headache anytime I was close to it, and the smell carried for several feet. If you have any chemical or fragrance sensitivities, you might want to choose another modem.
Paul K.
Reviewed in the United States on July 15, 2016
This review is being written the same day I got the modem, so don't rely on it for long term impressions. The setup process went fine and the modem works correctly. I'm getting the speeds that I pay for, same as what I had previously. I purchased the modem because my provider is in the process of upgrading their network, and when the upgrades are complete I'll need a 16 channel modem to remain on my current plan with the new speeds they'll offer. I wanted to write this review to provide some useful data for anyone else considering this model, because it's something I wish I could have found documented for newer modems before I purchased it.First is the heat produced by the device. I've attached a photo taken with a thermal camera, showing the modem after being in use for 2 hours. It reads 111 degrees Fahrenheit at the hottest point. (Approx. 44 degrees Celcius) This means that the modem is warm to the touch, but not hot.I also measured the idle power consumption of the modem using a kill-a-watt device. This is with the modem connected to the network and some devices connected via a router having some connections open, but no active downloads or streaming occurring. Idle power consumption averaged at 7.7 Watts.I like the modem itself, although I'm not sure at this point if I'm going to keep it. Compared to my previous modem, (SB6141) both the power consumption (5.9W vs 7.7W) and heat output (98F vs 111F) are higher. On the plus side, it offers twice as many channels and twice the maximum speed. Considering the performance bump, the difference between the two devices likely means the MB7420 is actually better from a performance per watt perspective. If you need the kind of speed this modem is capable of, it seems like a very good option.
Philip
Reviewed in the United States on June 28, 2016
Pros: Fast, Works without a hitch, Pays for itself in 9 monthsCons: The diagnostics page could be formatted betterI purchased this when I upgraded my TWC service. I am subscribed to the TWC 50/5 "Ultimate" package and I'm getting 124/6 so no complaints there.The only annoyance was dealing with TWC support for activation. I use TWC's phone service, so I kept the old TWC modem for the phone. So of course they kept activating and deactivating the wrong modem at first, but I stayed on the line until they sorted it out. Since then (just over two weeks) the modem has been up nonstop with zero errors, zero outages, etc. 16 down channels and 4 up channels all bonded, I'm amazed I can get this level of service out here in the sticks (Hudson Valley NY).One fun fact about TWC -- if you use their modem for phone only, they won't charge you for it. So when I brought in this modem and relegated the old one to phone only use, they let me keep it but stopped charging me $10/month. Good deal.The only possible complaint I have about this modem is that the web page is a little basic. It shows what you need to know, signal strengths etc, but the formatting on the log entries isn't great and some entries get truncated. It's a minor thing but it's the only downside I could really think of so I figured I'd mention it. The way this thing performs I wouldn't trade it over that.Overall, highly recommended. Performs flawlessly, works beautifully with my TP-Link C7 router, gives me rock-solid stable service faster than I am paying for.
Reviewer #5
Reviewed in the United States on April 20, 2016
The modem works as advertised and I had no issues with getting it provisioned from TWC. It took all of ten minutes from unboxing, disconnecting the old modem connecting this one and having it provisioned. I called the technical support as I was unboxing and disconnecting and it was simple and painless to get the new modem on line. No initial difference in speed but none was expected. Only difference seems to be during peak times I now seem to get my full rated speed and no evening slowdowns. Time will tell if this will continue as it is up to the bandwidth the cable company provides.I upgraded from an older version of this modem. My cable provider will be increasing speed shortly so I wanted to be prepared. The previous one would have been able to handle the upgraded speed but based on reviews this seemed like it would give me an advantage as is has more channels available to get the maximum speed. Anyone on my "node" who has an older modem or probably the one from the cable company is not going to have as many channels available to I should get better performance.This should "future proof" me for at least the next five years. It is a good investment considering it will pay for itself in 9 months. I had my current modem for 5+ years and no problems. I will sell it at a garage sale and make some of my initial investment back on that too.
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