USB PIDs aren't like NIC MAC addresses, two identical items (keyboards, webcams, etc.) are supposed to have the same PID in order for the OS to recognize them a

USB PIDs aren't like NIC MAC addresses, two identical items (keyboards, webcams, etc.) are supposed to have the same PID in order for the OS to recognize them as being the same and to apply the same driver to them. The VID is just a namespacing convention.