Network Storage Routers

I have been using laptop and an external USB hard drive. And whenever i want to connect external Hard drive or a Printer i was physically connecting to my USB ports. Later i was googling to find out is there a way of connecting the external hard drive to my PC without connecting the wires either bluetooth or so. I found that there are Wireless routers which are capable of connecting external hard drives where we can share the files across the network. All you have to do is just plug-in the hard drives in the USB ports of the router and wow now you can access your external hard drives or printers wirelessly(how convenient!). There are also some network hard drives which can connect to ethernet ports. Ofcourse i am not Networking guy though this technology would have existed long time back wanted to post this informaton as we are moving towards wireless technologies (wireless routers,Bluetooth etc.,) in our day to day practices.