Items related to ARRIS SURFboard SB6121 DOCSIS 3.0 Cable Modem - Retail Packaging - Black

Wired modem only - Does not include Router, Wifi, VOIP, television, or telephone support
Requires CABLE Internet Service, if not sure your provider is CABLE call them to confirm
Compatible with ALL Major CABLE providers like Comcast/Xfinity, Cox, Charter, Time Warner, Mediacom, Bright House. Is not compatible with Verizon FiOS or AT&T U-verse
Internet speeds based on your Cable provider service - up to 172 Mbps download and up to 131 Mbps upload
Rear panel color coded for ease of installation
BROWN BOX models NOT VALID for this item, should report to Amazon immediately and RETURN to Seller