The Intel(R) PCIe Root Port 5 - 1BBD is a device related to the PCI Express (PCIe)PCIe root ports that manage the communication between the CPU and connected PCIe devices (such as graphics cards, storage devices, network cards, etc.).

The 1BBDChipset Driver package, which provides support for all the necessary PCIe root ports, lanes, and other components built into Intel-based motherboards.