| Device ID | Description |
| PNP0A00 | ISA bus |
| PNP0A01 | EISA bus |
| PNP0A02 | MCA bus |
| PNP0A03 | Peripheral Component Interconnect (PCI) bus |
| PNP0A04 | VESA/VL-bus |
| PNP0A05 | Generic Advanced Configuration and Power Interface (ACPI) bus |
| PNP0A06 | Generic ACPI Extended I/O (EIO) bus |