ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem/ AC1900 Dual-Band Wi-Fi Router, Approved for Xfinity Comcast, Cox, Charter and Most Other Cable Internet Providers for Plans up to 300 Mbps. (SBG6950AC2) - Walmart.com
ARRIS SURFboard SVG2482-AC DOCSIS 3.0 Wi-Fi Modem for Xfinity 1000425 - The Home Depot
Replacing Your TV Boxes and Modems – FAQs - Xfinity Support
Restored NETGEAR C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4 Download speeds for Xfinity from Comcast, Spectrum, Cox, Cablevision (Refurbished) - Walmart.com
Get xFi - Personalize, Manage, and Protect Your Xfinity Internet
Motorola MG8702 DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum - Newegg.com
Refurbished: Motorola MG7550 DOCSIS 3.0 Cable Modem plus AC1900 Wi-Fi Router 686 Mbps Comcast Xfinity Time Warner Cable | Fast Server Corp. www.srvfast.com
The pros and cons of buying your own modem
Comcast's new router includes Wi-Fi 6E, Zigbee, and Matter - The Verge
Amazon.com: NETGEAR N600 (8x4) WiFi DOCSIS 3.0 Cable Modem Router (C3700) Certified for Xfinity from Comcast, Spectrum, Cox, Spectrum & more : Electronics