The Actiontec MD56ORD V92 MDC Modem is a dial-up modem that supports the V.92 standard, which is used for internet connections over telephone lines. The "MDC" in its name refers to Modem-on-Hold, a feature that allows you to use the phone line for voice calls while staying connected to the internet, without interrupting the internet session. The V92 standard is an upgrade from the older V90 standard, offering features like faster connection speeds and improved call-waiting capabilities.

The Windows driver for the Actiontec MD56ORD V92 MDC Modem is software that allows your Windows operating system to communicate with and control the modem. Without the appropriate driver, your computer may not recognize or be able to use the modem.