The Actiontec 56K V90 Modem is a dial-up modem produced by Actiontec Electronics that supports data transfer speeds up to 56 Kbps (kilobits per second) over telephone lines. The V90 refers to a specific standard for 56K modems, which was one of the most common dial-up standards in the late 1990s and early 2000s. While broadband internet has largely replaced dial-up modems, some users may still need these modems for certain use cases like accessing legacy systems or for rural areas where high-speed internet options are limited.