I regularly get questions from readers asking how they can connect external monitors to their laptops. If your laptop doesn’t have a docking station, your only option is a fairly lousy USB video adapter like this:

USB video adapters are limited in resolution because the bandwidth available from USB is pretty limited. It won’t be available for a couple of months, but Asus is announcing a better solution. This one uses the Express Card slot in some new computers (a faster version of the PC Card/PCMCIA slot in all laptops), which provides way more bandwidth than USB. It’s full of features, including an LCD display, and I bet it’ll be wicked expensive. As a bonus, it should be powerful enough to turn an average laptop into a good gaming computer. Hopefully, we’ll see more pedestrian external Express Card video adapter to follow soon.
Asus XG Station is Worlds First External Laptop Graphics Card – Gizmodo