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Arris SB6121 SURFboard DOCSIS 3.0 Cable Modem

Arris SB6121 SURFboard DOCSIS 3.0 Cable Modem

Regular price $60.00 USD
Regular price $99.99 USD Sale price $60.00 USD
Sale Sold out
Shipping calculated at checkout.

ARRIS SB6121 SURFboard DOCSIS 3.0 Cable Modem:

  • Compatible with Time Warner Cable, Charter, Cox, Cablevision, and more
  • Not compatible with Verizon FiOS or AT&T U-verse, no longer approved by Comcast Xfinity
  • Requires Cable Internet Service, if not sure your provider is CABLE call them to confirm
  • Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
  • Internet speeds based on your Cable providers service - up to 172 Mbps download and 131 Mbps upload. 4 Download and 4 Upload Channels.


  • Channel bonding of up to 4 downstream channels and 4 upstream channels increasing data rates of well over 100Mbps in each direction
  • SURFboard modem supports IPv4 and IPv6
  • Supports AES traffic encryption
  • Motorola modem features enhanced network management
  • Ability to provision and manage IP multicast
  • GigE (RJ-45) data port with auto negotiate and Auto MDIX
  • User-friendly online diagnostics
  • Power saving energy conservation switch
  • Internal low pass filter to eliminate MoCA signal overload
  • SURFboard modem can be installed and activated without disrupting service

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