Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more; Requires Cable Internet Service Not compatible with: Verizon, AT&T, or CenturyLink Cable Modem only (no WiFi router) Features Intel Puma 5 chipset to achieve high speed downstream and upstream performance 8 download and 4 upload bonded DOCSIS channels give you the most out of your existing cable broadband connection