Product: PCI/PCI Express Card
Function: It adds various ports to a desktop computer, such as LAN, USB 3.0, SATA, and serial/parallel ports.
Technology: PCI Express (PCIe) is a high-speed interface standard that has largely replaced the older PCI standard, offering faster data transfer rates.
Compatibility: It is designed to be backward compatible with standard PCI cards, allowing for the use of existing cards, though they will operate at the slower PCI speed.