NETGEAR DOCSIS 3.1 Multi-Gig Cable Modem with 4 Ethernet Ports. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox (CM1200) - Newegg.com
NETGEAR - Dual-Band AC1600 Router with 16 x 4 DOCSIS 3.0 Cable Modem - Black - Walmart.com
ARRIS SURFboard DOCSIS 3.0 SVG2482-AC Refurbished Cable Modem 1000895-RB - The Home Depot
DOCSIS 4.0, Explained.
Amazon.com: ARRIS Surfboard | SB8200 DOCSIS 3.1 Modem (1 Gbps Max Speeds) & W121 AX6600 WiFi 6 Mesh Tri-Band Router System Bundle (Coverage up to 5,500 sqft) | 2 Year Warranty