ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem (Black,Retail Packaging)

May 5, 2017 - Comment

A new and improved version of the world’s most widely deployed DOCSIS cable modems. For the residential cable subscriber who wants a powerful modem capable of delivering a high-speed data service at blazing fast speeds.10 / 100 / 1000 Base-T Ethernet Port (RJ-45) and 1-Year Limited Warranty. Additional information: • Requires CABLE Internet Service, if

Buy Now On Amazon! $79.99Amazon.com Price
(as of August 18, 2017 8:57 pm BST - Details)

A new and improved version of the world’s most widely deployed DOCSIS cable modems. For the residential cable subscriber who wants a powerful modem capable of delivering a high-speed data service at blazing fast speeds.10 / 100 / 1000 Base-T Ethernet Port (RJ-45) and 1-Year Limited Warranty.

Additional information:

• Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm
• Compatible with ALL Major CABLE providers like Comcast, Cox, Charter, Time Warner, Mediacom, Bright House

Product Features

  • Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
  • Compatible with Comcast, Time Warner, Cox, Charter, Bright House Networks and MOST Small Regional Cable Providers (NOT compatible with Verizon FiOS or AT&T U-verse). Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm
  • Internet speeds based on your Cable providers service – up to 172 Mbps download and 131 Mbps upload. 4 Download and 4 Upload Channels.
  • BROWN BOX models NOT VALID for this item when sold as New, should report to Amazon immediately and RETURN to Seller
  • Good for streaming HD Video and gaming

Originally posted 2016-07-05 09:00:06.

Comments

J. Cameron says:

Easy install, fast speeds, and no issues so far! Swapped out my Comcast rental modem, was up and running in just a few minutes, and now I don’t have to pay the $7 modem rental fee to Comcast. I’m provisioned for the 105/20 Mbps package and typically get 120/20.5 Mbps. 

T. Hyatt says:

Does the job well/tip for Comcast users Out of nowhere, I was having excruciatingly slow internet speed on Comcast. The Comcast tech advised that my Motorola SB 4100 was at the “end of life” and that I should upgrade. Skeptical, I purchased this modem which is a DOCSIS 3.0 (and backwards compatible) modem. It worked. I went from a 2mbps download speed to over 17mbps. What a difference. There was one installation glitch that you need to be aware of. When you hook up the modem (connect the coax cable, connect the ethernet cable, and plug it in, that’s it), and then try to get online, it will direct you to a Comcast self-activation screen (no other site is available). After entering my account number and phone number and hitting the “next” button, I got a blank screen, and nothing happens. So I called Comcast and they said that usually happens if you are doing an upgrade; it mostly works only for a new service connection. However, it is a simple matter to give the tech your MAC address and the serial number. After…

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