Docking Stations allow you to effortlessly use your desktop peripherals with your laptop.
Some models of laptops offer a "Docking port" which allows you to connect an external Docking Station which has built in ports for your modem, network card, external monitor, printer, scanner, keyboard and mouse.

Using a Docking station means you only have to connect one cable rather than many, keeping your office desktop tidy and saving you time.