Cable Modem or Wi-Fi Modem Router Combo: Which one to buy? - Pick My Modem
NETGEAR 32x8 Cable Modem, DOCSIS 3.0 Certified for XFINITY by Comcast, Time Warner, Charter, and more (CM700-100NAS) - Walmart.com
Shopping for a cable modem? Read this first! - CNET
Should you buy a modem and router together or separate? - Chicago Tribune
ASUS DOCSIS 3.0 High Speed 16 x 4 Cable Modem, Max. Download Speed 686 Mbps, Certified for Xfinity from Comcast, Spectrum and Cox , Separate wireless router required for Wi-Fi connectivity (CM-16) - Walmart.com