Buy.com offers the Tritton Xpress D300 Universal Notebook Docking Station, model no. TRIXD300, for $22.99 with free shipping. That’s the lowest total price we could find, although it was $3 less in September (since expired). This docking station connects to your notebook via a single USB cable. It includes a built-in VGA port allowing you to add an additional external monitor, four USB 2.0 ports, audio ports, built-in speaker, Ethernet, and more.