Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0
Original price was: $109.99.$85.95Current price is: $85.95.



Price: $109.99 - $85.95
(as of Aug 06, 2025 23:40:02 UTC – Details)
From the brand



Choosing a Gigabit WiFi Router

For over 40 years, people have welcomed Motorola Network into their homes, and we don’t take that lightly.
We’ve combined our class-leading hardware with intelligent software to deliver the ultimate connected experience for all.

Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this “the best modem for most people.” A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
This cable modem’s 1 Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi. (This cable modem does not have a built-in wireless router or telephone call capability. The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, and other cable service providers. Eliminate cable modem rental fees up to 156 dollars per year. (Savings are shown for Xfinity and vary by cable service provider. No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others. Model MB7621 has no phone jack.)
Setup is fast and easy using the quick start guide.
Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A 2-year warranty plus rugged lightning and power surge circuits protect your investment.
Customers say
Customers find the modem works well with Comcast and Xfinity, praising its blazing-fast speeds and strong WiFi signal. Moreover, the device is easy to set up. However, connectivity issues are significant, with customers reporting constant disconnections and Comcast-specific problems. Additionally, opinions about value for money and reliability are mixed, with some finding it well worth the price while others consider it poor quality gear, and while some find it generally stable, others report persistent stability problems. Compatibility is also mixed, with some customers confirming it works with Comcast/Xfinity while others note it’s not compatible with Spectrum.
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Original price was: $109.99.$85.95Current price is: $85.95.
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