For future reference.
If the driver is installed you can go to device manager and look at the devices in there. If it's not installed and listed as an unknown device there is another way but it's more complex.
Go to the unknown device. Right click it and open the properties window. Then click on the details tab and change the drop down to Hardware IDs. Like this.

Now. Ignore the fact that my window says High definition audio device properties. Yours (with no driver installed) will say Unknown device properties but you can still access the Hardware IDs.
OK, now, how to descramble the info to ID your sound card/network card/any unknown device.
Look at the string. VEN_10. VEN = Vendor, 10 = number of vendor.
And then the string part DEV_0662. Dev = device, 0662 = unique device code.
So in this instance VEN (vendor) = 10 which in this case 10 is Realtek/clones and DEV (device) 0662 = the number code for the exact model of realtek device.
A simple way to use that string is to type the entire thing into google (the entire whole thing verbatim) and it will then find one of the device ID websites set up and point you to which device/model/manu that you have.