Linksys Official Support - Setting up your Linksys DOCSIS 3.0 Cable Modems
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
Comparison of DOCSIS Cable Modems 8x4 vs 16x4 vs 24x8 vs 32x8