The Sweex 4.1, Sweex 5.1, Hercules Muse, Terratec Aureon 5.1 PCI and Aureon 5.1 Fun use this chipset. All cards with a CMI8738 should work just fine.
Chipset
CMI8738
Manufacturer
Various
Manufacturer URL
Linux Compatibility
It works
OS4 Compatibility
It works