Software > Utility Software > DPCImanager v2.0
DPCIManager lists all of the PCI devices attached to your machine, along with their PCI IDs, vendor name, and device name. It will also retrieve the kext loaded for that device, important when troubleshooting.

Download: 1.6 | 2.0 | 2.1
Mirror: github.com v2.0 | sourceforge.net v0.9
Substitute: Hackintool | IORegistry Explorer
Compatibility: OS X 10.7 and later.