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
Best Comcast Xfinity Compatible Modems (2023)
Amazon.com: NETGEAR Cable Modem with Voice CM500V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 300 Mbps | 2 Phone lines | DOCSIS 3.0, Black, 16x4 w/ Voice (CM500V-100NAS) : Electronics
Xfinity xFi Review 2023 | CableTV.com
ARRIS SURFboard DOCSIS 3.1 Cable Modem for Xfinity Internet & Voice Black T25 - Best Buy