Imagine yourself sitting in front of your desk, surrounded by multiple devices such as your desktop, laptop, and media player. You try to switch from one device to another, but you get irked by the endless plugging and unplugging of your keyboard, mouse, and monitor.

That’s where the KVM switch comes in handy. 

An extended display, in simple terms, is a setup that allows you to use multiple monitors (two or more) to extend your computer's primary monitor – or in this case, your laptop’s main screen. Having an extended display allows for more screen real estate so you can multitask better and improve your overall experience.