Best thing to do would be to open up Device Manager, go into Properties of a device, in the Properties window of the device click Details tab. In the drop-down box, select Hardware Ids. What you should see is something like this for example (from my pc):
If you Google PCI\VEN_10EC&DEV_8168 it will tell you its a Realtek PCIe GBC Family network card.
Try this method for identifying what drivers you need.