7 Best Comcast Xfinity Compatible Modems in 2022 [Approved & Certified]
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem. Approved for XFINITY Comcast, Cox, Charter and Most Other Cable Internet Providers for Plans up to 400 Mbps. - Walmart.com
ARRIS SURFboard DOCSIS 3.1 Cable Modem for Xfinity Internet & Voice Black T25 - Best Buy