ARRIS SURFboard 16x4 Cable Modem / AC1600 Dual-Band WiFi Router. Approved for XFINITY Comcast, Cox, Charter and most other Cable Internet providers for plans up to 300 Mbps. - Walmart.com
Modem vs Router – What is the Difference? Do I Need Both?
How to Connect a Router to a Modem (with Pictures) - wikiHow