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you need much more USB Ports on your PC

Much more and much more devices are now connected to PC by way of USB than ever prior to and given how easy USB technologies is its no surprise. The fact that a USB connector on your PC can deliver power as well as transfer information (if required) indicates that technologies producers are continuously searching at new ways to make the most of the ease and simplicity that a USB connection offers. This proliferation of devices that plug into your USB ports is fantastic but it does mean that pretty rapidly you will find your self without sufficient USB ports on your PC to assistance all of the devices you would like to connect to your PC by way of USB. Fortunately it's a issue that has a simple solution. A USB Hub (typically a 4 Port USB Hub or a 7 Port USB Hub) lets you add more USB ports to any PC or Mac. The USB hub connects to your PC via a single USB cable but it then provides either four or 7 new USB ports for you to plug your devices into. So, a 4 port HUB will give you three extra USB ports (remember you will use 1 to connect the hub to so a four port hub really adds 3 extra USB ports) along with a 7 Port USB Hub will give you 6 additional USB ports. Simply because the USB ports on your PC will deliver power towards the USB Hub the new USB ports the hub creates will have some power (without the require the a separate power supply) - Non powered or USB BUS powered hubs are perfect when you are seeking to use the hub for devices likes USB Card readers, USB Memory Sticks, USB Bluetooth adapters, small USB gadgets, LED penlight etc but if you're seeking to use the hub to plug in big "power hungry" devices like Printers, Scanners, Modems, Big external disk drives, and so on then you'd be advised to purchase a USB hub that has its own additional power supply. The vast majority of powered USB hubs can be used with out the power but the benefit of the additional power supply is the fact that if the hub cannot get enough power from the USB port its connected to then a minimum of you can power the devices connected to it by plugging in the power supply unit.