A modem that plugs into an expansion slot within the computer. Unlike an external modem, an internal modem does not provide a series of display lights that inform the user of the changing modem states ...

Like you say, negligible difference in performance, any comunications between your PC and Modem will be at a speed many times faster than your dsl connection.

Several months ago, a lightning storm fried my old external modem, forcing me to use my motherboard's internal modem since. While the internal modem works fine, I find that connecting and reconnecting ...