USB ports are the most popular way to connect external computer peripherals such as mice, keyboards, digital cameras, printers, media players, external hard drives etc - the list goes on!
Over recent years USB has developed and can now replace AC Power Cords to charge/power devices such as Mobile Phones, Speaker Systems etc.
Before you order, make a quick list of devices you currently use which require a USB Port. If you think you need a more than the standard ports, then you will need to buy an external, ideally powered, USB hub.
* Images for illustration purposes only.