Motorola SB6121 Cable Modem Review 2017

A good router is necessary if you are setting up a wireless system in your home. There are many cable modems available in the market, but the Motorola SB6121 offers more unique features for a faster internet connection. For instance if you play lots of online games, or frequently perform video calls with your friends or family members, then fast internet connection is needed. You would need a modem like Motorola SB6121 to utilize the maximum internet speed that you can get. Before jumping into the details have a look at the introduction of this device:

Motorola SB6121

About the product:

Motorola SB6121 is also known as “ARRIS / Motorola SB6121 Surfboard DOCSIS 3.0 Cable Modem”. This device is basically a cable modem, which can be used anywhere you want to set up a perfect home network system. It’s simple, easy to install and basically provides high internet speed for online games, video chatting, conferencing and fast files downloading, uploading, and sharing. The device has a nice slim look, made with black body, can easily slide anywhere; provides strong signals for wireless devices.

Main Features of this modem :

  • Easy plug-and-play installation
  • Comes with multi-language guides
  • LEDs in front for perfect visibility
  • Slim design, made to save space
  • Backward-compatible: DOCSIS/EuroDOCSIS 1.X AND 2.0
  • Enhanced security: AES supported
  • TFTP and SNMP supported for remotely configuring
  • Compatibility: Windows, UNIX and Macintosh computers
  • Auto MDIX and auto Negotiate
  • Supports IPv6 and IPv4
  • DOCSIS 3.0 certified
  • Perfect for online gaming, high quality video and voice conferencing, IP TV
  • Online shopping made easy
  • Download any file with ease
  • Upload your pictures instantly on social media

What’s in the box:

  • Installation guide
  • Ethernet cable
  • Motorola SB6121


The convenience of the Internet has changed things significantly. Now, people are turning online for watching movies, playing games, reading books, communication, shopping and lots of other things. To perform all these tasks, a fast internet connection is needed and this is one of the fastest cable modem available in the market, which can be easily set up in the home environment for all these tasks. Importantly if you want to build home wired network, the Motorola SB6121 is enough but if you want to build home wireless networking, you have to use additional hardware, wireless router / access point. This device is incorporated with channel-bonding technology, to fast internet services.


This device is not compatible with every cable provider; hence before you choose this product, do make sure to check with your cable operator for their list of certified devices that they support. Other than this, perfect cable modem for home use. However if you want a modem for office use, you can go with latest Motorola version.


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