I
Insight Horizon Media

Is Motorola SURFboard SB6121 outdated?

Author

Christopher Anderson

Published Mar 12, 2026

Is Motorola SURFboard SB6121 outdated?

Arris/Motorola’s SB6121 SURFboard DOCSIS 3.0 Cable Modem used to be considered “eXtreme,” but now most cable companies consider it obsolete.

Is Motorola SB6141 still good?

While it doesn’t have some of the best physical features, like a power button, the SB6141 is a great choice and will serve most people well. The low operating temperature, high ISP compatibility and high speeds make the SB 6141 a good choice for a basic modem.

How fast is Motorola SURFboard SB6121?

172 Mbps

CompatibilityMajor U.S. Cable Providers
Download Speed (Internet)Up to 172 Mbps
DOCSIS3.0
Gigabit Ethernet Port1 port
Wi-FiNo

Is Motorola and Arris the same?

They have the two names “Arris” and “Motorola” because the Motorola division that manufactures these modems has been sold to the Arris Group, a manufacturer of high-speed data, video and telephony systems. They use the DOCSIS 3.0 standard to move data over cable networks.

Which modem speed is the fastest?

Google Fiber and Xfinity both offer 2,000Mbps plans, which are the fastest of any major residential internet provider. Xfinity has the fastest upload speeds with up to 2,000Mbps available in select areas while Google Fiber’s 2 Gig plan comes with upload speeds up to 1,000Mbps.

Is Arris better than Motorola?

Verdict: Both the Arris SB8200 and Motorola MB8600 have an excellent build quality and each of these two devices took a different design approach (one is small and has a cheerful vibe, while the other is a bit larger and more elegant), so it would have been quite difficult to choose the winner if Zoom wouldn’t have …

Is Motorola modem better than Arris?

Motorola cable modems tend to be more expensive than Arris cable modems, but you get what you pay for. In addition, Motorola’s modems are compatible with more internet and cable providers and boast high-speed and consistent internet connections, while most Arris modems are only compatible with Comcast.

Is DOCSIS 3.1 outdated?

Drawbacks with DOCSIS 3.1 Because as for now, DOCSIS 3.1 is rare, and most ISP only offers internet plans with DOCSIS 3.0 capacity. This means that you maybe need to buy a new modem anyways once your ISP implements DOCSIS 3.1. Because it might take so long time that the one you buy now will be too old.

What is the latest DOCSIS version?

Now the latest version of DOCSIS is 3.1 and this specifies a minimum of 10 gigabits down and one gigabit upstream. This uses a signal scheme called “4096 quadrature amplitude modulation”.

How do I speed up my Motorola router?

Maximize Wireless at Home

  1. Turn off devices connecting wirelessly that are not in use. Turn off devices that are not being used.
  2. Connect directly to your modem/router:
  3. MoCa Adapter installation:
  4. Modem/Router Position and Location in the home.
  5. Antenna.
  6. Wireless Extenders.
  7. Restart your WiFi equipment regularly!

Which modem is good for high speed internet?

Best modems for gigabit internet

ModelEthernet ports
Best overallMotorola MB86004
Best valueARRIS SURFboard SB82002
Best modem/router comboNETGEAR Nighthawk C78004
Best lookNETGEAR Nighthawk CM12004