Most PC motherboards will feature one or more of these expansion slots so that you can expand the functionality of your computer beyond what is provided out of the box. These interfaces are often referred to as expansion slots. The acronym stands for Peripheral Component Interconnect.
These PCI cards let you add on the SuperSpeed USB ports you need and generally provides access to these ports via the back of the case. Your desktop computer may have no USB 3.0 ports, or not enough. USB 3.0 is a major revision to the Universal Serial Bus standard that provides SuperSpeed performance, which translates to a data transfer rate up to 5 GB per second.
This solution does not just add more ports but provides support for more USB devices, data bandwidth, and power throughput. Just add more external ports with a USB card you attach to your motherboard. Never run out of SuperSpeed USB ports again. USB 3.0 Internal Port Expansion Cards for PCI
