Home / Collections / All / Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

mb7621 | 830Mbps DOCSIS 3.0 Cable Modem - Refurbished

"Didn’t realize how much my old modem was reducing my bandwidth until I installed this modem. Totally worth it." –Jeff

mb7621 | 830Mbps DOCSIS 3.0 Cable Modem - Refurbished

  • Compatible with Xfinity, Cox, Spectrum & more
  • Save up to $168* per year vs renting
  • Refurbished Product, 90-Day Warranty
$79.99 $89.99 saving $10.00
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  • Compatible with Xfinity, Cox, Spectrum & more
  • Save up to $168* per year vs renting
  • Refurbished Product, 90-Day Warranty

"Didn’t realize how much my old modem was reducing my bandwidth until I installed this modem. Totally worth it." –Jeff

  • Description
  • Tech Specs
  • high-speed DOCSIS 3.0 performance

    Compatible with major U.S. cable Internet providers including Comcast Xfinity, Cox, Spectrum and others.

    fast, reliable Internet

    Supports cable Internet service plans with speeds up to 600 Mbps for faster downloads, HD streaming, and better gaming.

    works with any router

    Seamlessly pair with any WiFi router to connect all your wireless devices. This cable modem does not have a built-in wireless router or telephone capability.

    extreme cost savings

    Save up to $168 per year on modem rental fees with your Internet provider.

    simple setup and use

    Easy self-installation. Comes with a 2-year warranty and free support from our team of US-based technicians.

    motosync app

    It's like having our product experts in your home with one tap using in-app live chat support.

  • GENERAL

    Cable Modem Service Interface

    • F-type female 75 Ω (standard coaxial connector)

    Ethernet LAN Interface

    • RJ-45 10/100/1000 Mbps Ethernet, with Auto-MDI/MDIX

    Status Indicators

    • Front panel:
      Power, Downstream, Upstream, Online, LAN

    Dimensions

    • 2 1⁄4" wide x 7 1⁄4" deep x 7 7⁄8" tall
      (57 mm x 184 mm x 200 mm)

    Weight

    • 16.3 ounces (462 grams)

    Power Adapter

    • DoE-compliant Level VI energy-saving, UL-listed power adapter with 12 Volt DC, 1.5 Amp output and 100-240VAC universal input
    • NEMA 1-15 (North American style) 2-prong plug is provided in the US.

    Operating Temperature

    • 32° to 104° F (0° to 40° C)

    Certifications

    • FCC 15B, Bureau Veritas 60950-1 ITE safety, CableLabs®, cable service providers

    Surge Protection

    • Ruggedized cable and power lightning protection

    Warranty

    • 90 Days

    Operating Parameters

    DOCSIS Standards

    • DOCSIS 3.0, 2.0, 1.1

    Downstream

    • Data Rate*:
      Up to 1029 Mbps*
    • Bonded Channels:
      Up to 24 SCQAM
    • Frequency Range:
      108 to 1002 MHz
    • Modulation:
      64 or 256 QAM
    • Operating Level Range:
      -15 to +15 dBmV

    Upstream

    • Data Rate*:
      Up to 246 Mbps*
    • Bonded Channels:
      Up to 8 SCQAM
    • Frequency Range:
      5 to 42 MHz
    • Modulation:
      QPSK, 8QAM, 16QAM, 32QAM, 64QAM,128QAM,256QAM
    • Operating Level Range:
      +65 dBmV (64 QAM, single channel)
      +57 dBmV (64QAM, 4-8 channels)
      +65 dBmV (16 QAM, single channel)

    Network Protocols

    • IPv4, IPv6, TCP, UDP, ARP, ICMP, DHCP, FTP, TFTP, SNMP, HTTP

    Application Protocol

    • SNMP v1/v2/v3

    DHCP Client

    • Automatically retrieves IP and DNS server address from DHCP server through WAN connection

    Management

    • Web-based management interface utility

    System Requirements

    • The cable modem must be connected to a cable modem service that uses any of the DOCSIS standards – 3.0, 2.0, 1.1

    Package Contents

    • Cable Modem
    • Power Cube (UL listed)
    • Ethernet Cable (Cat 5e)
    • Quick Start Flyer

    * 1029/246 Mbps is the maximum nominal download/upload speed for 24x8 DOCSIS 3.0 cable modems. Actual speeds depend on a number of factors including the speed of your cable modem service, and will typically be slower. Speeds cannot exceed the speed of the Gigabit Ethernet port.

DOCSIS 3.0

DOCSIS 3.0 compatible

900 Mbps

Supports plans up to 900Mbps

Red X over a WiFi outline icon

No built in WiFi router

See WiFi model
Red X over a telephone outline icon

No Telephone Port

See Telephone Port model
DOCSIS 3.0
900 Mbps
Red X over a telephone outline icon

No Phone Port

See Phone model

Save up to $168/yr* & BOOST PERFORMANCE in 3 easy steps

Motorola Q11 1-Pack and 3-Pack packaging

Step 1

Pick the right modem

  • Select the right Modem system for your internet plan
  • Place Order
  • Receive in 1-4 business days
motosync app showing Motorola Q11 device was set up sucessfully

Step 2

Install modem and connect to your ISP

  • Connect your modem to service provider using their app or web page
  • Usually takes less than 15 minutes
motosync app Security screen

Step 3

Return rental modem and reduce your monthly bill

  • Save up to $25 on your monthly bill
  • Customize network without ISP restrictions

MB7621 Cable Modem

motosync app screenshots

Save big on rental fees*

  • Slash your monthly bills:
    No More Rental Fees
  • Long-term investment:
    Pays for itself rapidly
  • Recurring relief:
    Say goodbye to constant costs

*Rental fees based at $14/m with Xfinity

Save big on rental fees*

  • Slash your monthly bills:
    No More Rental Fees
  • Long-term investment:
    Pays for itself rapidly
  • Recurring relief:
    Say goodbye to constant costs
  • *Rental fees based at $14/m with Xfinity

motosync app screenshots

Built for value

  • Mid Speed Capable:
    DOCSIS 3.0 (24x8) with 1Gbps port
  • Mid performance:
    Recommended for speeds up to 650Mbps
  • Guaranteed compatibility:Works with speed plans up to 650Mbps
motosync app screenshots
House outline graphic showing three Motorola Q11 mesh devices with radiating WiFi signals animation

Certified with top broadband providers

  • Guaranteed compatibility:Works with speed plans up to 650Mbps
  • DOCSIS Standard:
    Compatible with any Docsis Cable network

Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

What's included

Everything you need to turn your cable into high speed internet connection.

  • 2x Q14 WiFi Router (2-Pack) or 3x Q14 WiFi Router (3-Pack) 
  • Power adapter
  • Ethernet Cable
  • Quickstart Guide

Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

frequently asked questions

Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished
Motorola DOCSIS 3.0 24x8 Cable Modem, up to 830 Mbps speed | mb7621 - Refurbished

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