DPCIManager
Simple OS X app for viewing PCI hardware info
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.
The new status tab gathers all of the most important info about your system into one place.
ACPI table extraction makes it easy to edit your DSDT or other tables easily.
Now includes ROM flashing.