USB (Universal Serial Bus) is a popular hardware interface that allows users to attach secondary hardware devices to their computer in a Plug-and-Play fashion.

                                    

Today just about every PC comes with Universal Serial Bus, or USB ports. In fact, many computers will even have additional USB ports located on the front of the tower, in additional to two standard USB ports at the back. In the late 1990s, a few computer manufacturers started including USB support in their new systems, but today USB has become a standard connection port for many devices such as keyboards, mice, joysticks and digital cameras to name but a few USB-enabled devices. USB is able to support and is supported by a large range of products. 

         
  USB Humidifier                      USB Paper shreder     

 
USB Tea Warmer            USB Skpe phone 



         
          USB Fan                             USB Light

    
   USB Air Purifier             USB Mini Refrigerator    

 
    usb microscope             USB Ashtray     
 

  
USB PC Camera              USB cooler                  

      

The introduction of USB ended many of the headaches associated with needing to use serial ports and parallel printer ports.  USB offered consumers the option to connect up to 127 devices, either directly or through the use of a USB hub. It was much faster since USB supports data transfer rates of 12 Mbps for disk drives and other high-speed throughput and 1.5Mbps for devices that need less bandwidth. Additionally, consumers can literally plug almost any USB device into their computer, and Windows will detect it and automatically set-up the hardware settings for the device. Once that device has been installed you can remove it from your system and the next time you plug it in, Windows will automatically detect it.