The Smart Link 56K Modem is a dial-up modem that allows a computer to connect to the internet or make phone calls through a telephone line. These types of modems were commonly used in the late 1990s and early 2000s before broadband internet became widespread. A 56K modem can theoretically achieve speeds of up to 56 kilobits per second (Kbps), though real-world speeds often vary due to line quality and other factors.

A Windows driver for the Smart Link 56K modem enables the operating system to communicate with the modem hardware, allowing your computer to use it for internet dial-up connections, sending/receiving faxes, or other telephony services.