Because it acts as a hardware-level "bridge" that allows modern PCIe slots to communicate with older PCI cards, it is natively supported by the Windows operating system. If you are seeing a "missing driver" error in Device Manager, it is likely for the legacy PCI card
Visit the support page for your specific motherboard (e.g., ASUS, Gigabyte, or MSI).
: PCIe-to-PCI adapter cards used to revive vintage sound cards or specialized industrial hardware.