Amazon.com: NETGEAR C3000-100NAS N300 (8x4) WiFi DOCSIS 3.0 Cable Modem Router (C3000) Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & More : Electronics
Cable modem - Wikipedia
Modem vs. Router: What's the Difference? | Wirecutter
Cable Modem Router, MOTOROLA 8 x 4 Cable Modem Plus N450 Single Band Wi-Fi Gigabit Router with Power Boost, 343 Mbps Maximum DOCSIS 3.0 - Approved by Comcast Xfinity, Cox, Charter Spectrum - Newegg.com