NETGEAR Ultra-High Speed Cable Modem DOCSIS® 3.1 for XFINITY® from Comcast, Spectrum® & Cox® (CM1000-100NAS) - Walmart.com
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)
Amazon.com: TP-Link TC-7610 DOCSIS 3.0 (8x4) Cable Modem. Max Download Speeds Up to 343Mbps. Certified for Comcast XFINITY, Spectrum, Cox, and more. Separate Router is Needed for Wi-Fi : Electronics
Time Warner Approved Modem Motorola SB6121 TWC Modem
Amazon.com: ARRIS Surfboard (32x8) DOCSIS 3.0 Cable Modem, 1.4 Gbps Max Speed, Certified for Comcast Xfinity, Spectrum, Cox, Cablevision & More (SB6190 Black) (Renewed)