The PCIe Expansion Card by Sabrent is a PC Card designed to add two ports with 19 pin USB 3.0 5Gbps connectivity to your computer. This expansion card allows for easy installation and provides additional ports for connecting various devices to your system. With a sealed unit, you can trust that the product is protected and ready to use straight out of the box. The high-speed USB 3.0 connection ensures fast and efficient data transfer, making it a valuable addition to your computer setup.