Most devices come equipped with a cable that is merely a few feet long which makes it rather restrictive when connecting devices to your computer. It also means that you have a rather cluttered desk with most of your devices needing to be close by.
You can buy USB extension cables from any electronics store and even through online sites these days. To buy affordable USB extension cables visit https://homekitaustralia.com.au.
Generally you will find them around 9 feet long but they are available in longer lengths. This makes it much more practical when using things like printers and scanners, especially when they are being shared by other computers. With a host in place and other computers and devices connected via a hub, computers can share information and devices without having to move them around.
If you have several computers sharing devices you may want to consider setting up a network. But generally it isn't really necessary for a household. An office would certainly benefit from a local network. With a host in place and other computers and devices connected via a hub, computers can share information and devices without having to move them around.
USB extension cables require no external power to operate and connect in real time. If you look around, you'll see that everything from cameras, external drives, webcams and voip phones are connected using USB, so it makes sense to have a spare cable in case one goes amiss. While the future looks in favor of wireless technology and communication, it will be many years when this becomes standard and takes over the use of cables.