A modem is a device that connects your home, usually through a coax cable connection, to your Internet service provider (ISP), like Xfinity. The modem takes signals from your ISP

As described above, Alt Mode allows USB-C ports to transfer data/video via multiple interfaces, including the increasingly popular DisplayPort video interface. USB-C ports capable of transferring DisplayPort signals are either

Coaxial is highly shielded, thus allowing them to carry signals at longer distances or bigger multiple-floor networks even though they have a lower speed potential compared to Ethernet cables. How