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Motorola SB6121 SURFboard® eXtreme Cable Modem

Model:

SB6121

 | Catalog #: 16-2098
$109.99
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4

  • Works well in conjunction with 100 Base-T and Gigabit Ethernet networks
  • 50 micron gold-plated connectors ensure a clean and clear transmission
  • Snagless molds protect the RJ45 tap from being damaged during installation

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3

  • Easy to setup and use
  • Stylish and space-saving enclosure and DOCSIS 3.0 certified
  • The mobility of a wireless LAN and the simplicity of "no new wire" technology
  • 2 diverse internal antennas to enhance wireless connectivity
  • Intuitive, built-in web-based diagnostics for quick and easy troubleshooting
  • Manage data and wireless networking using a Web-based interface
  • Security features including Wi-Fi® Protected Setup (WPS)
  • Access and legacy 64-bit and 128-bit Wired Equivalent Privacy (WEP) encryption
  • Advanced router with built-in firewall with Stateful Packet Inspection

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  • Stream HD video (up to 1080p) to your TV
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3

  • Access more than 100,000 movies and TV shows from Netflix, Hulu Plus, Amazon Instant Video and more
  • Built-in wireless networking (Wi-Fi b/g/n) allows connection without wires
  • Built-in Ethernet port for quick and easy wired Web connection
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  • Simultaneous dual-band Wireless-N offers 2x the bandwidth w/ better connection and less interference
  • Parental controls powered by OpenDNS™ blocks unsafe Internet content and applications
  • Ensure business-class Wi-Fi COMPLIANT™ security with WPA and WPA2 enterprise encryption
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Product Summary

Your Web SURFboard.

Motorola's easy-to-use SB6121 SURFboard® eXtreme Cable Modem harnesses the power of DOCSIS® 3.0. It enables channel bonding of up to four downstream channels and four upstream channels so advanced multimedia services with data rates of more than 100Mbps in each direction (depending on your service specs) can be achieved. Plus, experience online gaming at incredibly fast speeds.

  • Simple installation
  • Front panel LEDs indicate status and simplify troubleshooting
  • Supports standard Internet software, compatible with all cable operators
  • User-friendly online diagnostics
  • Compatible with Windows® XP, Vista®, Mac OS® 9, OSX®
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

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In store: Check availability
By phone: 1-800-843-7422

Manufacturer Warranty

  • Parts: 12 month
  • Labor: 12 month
Tech Specs

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Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Motorola SB6121 SURFboard® eXtreme Cable Modem
 
4.3

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

86%

of respondents would recommend this to a friend.

Pros

  • Easy to set up (5)
  • Fast connection (5)
  • Reliable connection (5)

Cons

    Best Uses

    • Surfing the web (4)
      • Reviewer Profile:
      • Quality oriented (4), Budget shopper (3)
      • Primary use:
      • Personal (6)

    Reviewed by 7 customers

    Sort by

    Displaying reviews 1-7

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    (1 of 1 customers found this review helpful)

     
    5.0

    Great Modem

    By mick

    from Niagara Falls NY

    About Me Quality Oriented

    Verified Reviewer

    Pros

    • Easy To Set Up
    • Fast Connection
    • Reliable Connection

    Cons

    • Absolutely None

    Best Uses

    • Heavy Downloading
    • Surfing The Web

    Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

    I replaced the Ubee modem/router that TWC gave me w/my internet service with this modem. Activation w/ TWC was a breeze - took the tech 5 minutes over the phone and viola - I was online. Super simple set up and great download speeds. I could not be more pleased with my new modem - Motorola scores again!

    • Primary use:
    • Personal

    (2 of 2 customers found this review helpful)

     
    5.0

    Easy Install-Fast speed-Stable link

    By Istvan

    from Delray Beach, FL

    About Me Quality Oriented

    Verified Reviewer

    Pros

    • Easy To Set Up
    • Fast Connection
    • Reliable Connection

    Cons

      Best Uses

        Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

        Very easy install. After plug in I called Comcast gave them the mac id # and I was up and running.
        I'm using this with a N600 Neatgear Router with it.
        Download speed 25Mbps
        Upload speed 4.26Mbps

        It is faster then my D-link modem which was also an excellent product.

        Does not drop the link, which is the most important feature that I like.

        No issues so far.

        • Primary use:
        • Business
         
        5.0

        Increased speed 33%

        By Happy camper

        from NY

        About Me Value Oriented

        Pros

        • Easy To Set Up
        • Fast Connection
        • Reliable Connection

        Cons

          Best Uses

            Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

            Got this to replace a DOCSIS 2.0 modem. Now I've got 4 bonded downstream channels and a 33% speed increase.

            • Primary use:
            • Personal

            (12 of 12 customers found this review helpful)

             
            5.0

            great modem

            By gui

            from ny

            About Me Quality Oriented

            Pros

            • Easy To Set Up
            • Fast Connection
            • Reliable Connection

            Cons

              Best Uses

              • Heavy Downloading
              • Networking
              • Surfing The Web

              Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

              This modem will guarantee fix your latency issues regarding ping or speeds with your current provider. DOCSIS 3.0 modems do make a huge difference, and I will never go back to those rent-a-cable modems ever again. Granted, the modem is a bit overkill for the advertised speeds from my provider, but honestly after 5 months of using it I never had issues. I stream games which take up massive amounts of bandwith, and I am able to stream my game, stream music on pandora, and have my family on their laptops doing their own thing without a hiccup. I pay good money for my cable provider, and this is probably the best 100 dollar investment I have made. Before you switch to a different provider, please try this modem first. Believe me, no one wants to go through the hassle of switching companies, it's a pain.http://www.speedtest.net/[@]Above advertised speeds from my provider.

              • Primary use:
              • Personal

              (5 of 5 customers found this review helpful)

               
              5.0

              Works GREAT with Wide Open West!

              By Jack

              from Plymouth, MI

              About Me Quality Oriented

              Verified Reviewer

              Pros

              • Easy To Set Up
              • Fast Connection
              • Reliable Connection

              Cons

                Best Uses

                • Surfing The Web

                Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

                I replaced a flakey WOW-provided Webstar DPC2100 with this one. It worked right out of the box! Setup was SUPER SIMPLE! You have to call [@] and give Wide Open West the MAC address. As soon as the customer service rep entered the MAC address, the cable modem rebooted and took off running. When you use your own cable modem, you cut your cable bill by $5 per month (the cable modem rental fee).

                • Primary use:
                • Personal

                (1 of 31 customers found this review helpful)

                 
                1.0

                Sucks for Routers taking back to store

                By sbbeef

                from Three Rivers, MI

                About Me Value Oriented

                Pros

                  Cons

                    Best Uses

                      Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

                      This cost [$] and doesn't have two or more ethernet connections (one only) so it sucks for router hookups. Not worth the money. Then Motorola only works Mon-Fri and has no info on product online.

                      • Primary use:
                      • Personal

                      (10 of 18 customers found this review helpful)

                       
                      4.0

                      it is [$] at [@]

                      By norm

                      from north las vegas

                      About Me Value Oriented

                      Verified Reviewer

                      Pros

                        Cons

                          Best Uses

                          • Surfing The Web

                          Comments about Motorola SB6121 SURFboard® eXtreme Cable Modem:

                          It is a good choice,best price right now is [@] is [@],not the best buy.

                          • Primary use:
                          • Personal

                          Displaying reviews 1-7

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