Amazon.com: NETGEAR Cable Modem CM400 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS 3.0, Black, 8x4 Cable Modem (CM400)
NETGEAR 24x8 Cable Modem, DOCSIS 3.0 | Certified for XFINITY by Comcast, Spectrum, COX & more (CM600-100NAS) - Walmart.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