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) Modems / Gateways - Newegg.com
Cable Modem Signal Levels revisited – Wolf Paulus
SBV3202 SURFboard DOCSIS 3.0 Cable Modem Xfinity Internet VOIP voice internet
ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem / AC1750 Dual-Band Router / XFINITY Voice. Approved for XFINITY Comcast Only for plans up to 600 Mbps. (SVG2482AC) - Walmart.com