Realtek Vendor and Devices for sound cards
Identify the type of audio card by using the device manager:
1. Open up Device Manager (right click "Computer", choose "Manage" and select "Device Manager")
2. Identify your unknown Realtek devices
3. Right click one of them and select "Properties"
4. Switch to the "Details" tab
5. Change the property drop down box to read "Hardware IDs"