MB7621  | Cable Modem
MB7621  | Cable Modem
MB7621  | Cable Modem
  • Load image into Gallery viewer, MB7621  | Cable Modem
  • Load image into Gallery viewer, MB7621  | Cable Modem
  • Load image into Gallery viewer, MB7621  | Cable Modem

MB7621 | Cable Modem

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  • Very Fast Internet Speeds
    24 x 8

  • Perfect for speeds
    up to 960 Mbps*

  • DOCSIS 3.0

  • Save on a cable modem
    monthly rental fee*

  • Compatible with our Whole
    Home WiFi Systems

  • Does Not Include
    router or MotoManage App

    in less than 12 Months

This cable modem is a great choice for Internet speeds up to the new 400 Mbps and 300 Mbps services available from Comcast XFINITY® and by other service providers. The MB7621 provides high-speed Internet for a computer, router, HDTV, game station, or streaming media device. To give Internet access to many devices, plug in any router you like.


Model MB7621 has all the features you want in a high-speed cable modem, plus Motorola extras like user-friendly setup and advanced surge and lightning protection. The MB7621 is certified by Comcast XFINITY® and other leading cable service providers, and saves up to $120 per year in cable modem rental charges. With easy installation, high speed, broad compatibility, and superb customer support, Model MB7621 is the perfect choice for a cable modem user looking for very high speed Internet.

Cable Modem
    • 24x8 DOCSIS 3.0 cable modem
    • 24 downstream channels for speeds up to 1,000 Mbps*
    • 8 upstream channels for speeds up to 246 Mbps*
    • * Actual downstream and upstream speeds depend on a number of factors including the speed of your cable service
    • Downloads 24 times faster than DOCSIS 2.0
    • Advanced design with Broadcom integrated circuit technology
    • Full-Band Capture digital tuner for even higher speeds and a faster, more reliable Internet
    • Supports IPv4 and IPv6 for powerful, flexible network addressing
    • Works with DOCSIS 3.0, 2.0, and 1.1 services
    • Modem’s 10/100/1000 Gigabit Ethernet (GigE) LAN port allows connection of a router, HDTV, game station, or other Ethernet-capable device
Additional Features
  • Typically saves over $120 per year in cable modem rental fees. Actual savings depends on your cable service provider
  • Fast, easy setup using Quick Start
  • 5 status-reporting LEDs
  • Ruggedized lightning and power surge circuits protect your investment
  • Space-saving unit minimizes shelf space and improves cooling for reliable performance
  • Product dimensions: 7 7/8” tall x 2 1/4” wide x 7 1/4” deep (200 mm x 57 mm x 184 mm)
  • 2 year warranty
  • Includes phone and web support by friendly, professional USA-based technical support specialists
  • Certified by CableLabs®
  • Certified by Comcast XFINITY® for speed tiers up to and including Comcast XFINITY Extreme Pro Internet 400, and by other leading cable service providers.
  • FCC 15B
  • Bureau Veritas 60950-1 ITE U.S. Safety

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