I was thinking if you have Windows 10, you don't need one. Got W10?
XMC-1 DIRAC Full; Oppo 105/Roku Ultra to Panny AE4000 w/106" screen; UltraRendu to LH Labs Geek Pulse X-Infinity; nCore nc400's or Prima Luna Premium Prologue to Maggie 1.7's; Rythmik F25; XPA-5 to CC-470v3 Center/ERD-1's; Thorens TD166 MkII/Denon DL207/XPS-1; 5-zone Sonos w/Def Tech AW5500's @ deck/pool/master bath & Sony SS-MB105/Polk R10 @ great room & kitchen. Two headphone setups: Hifiberry/BasX A100 and Allo BOSS/Schiit Asgard 2 (each to Senn 600's). PC w/Airmotiv 3b's. Roon user.
The C-Media CM6631A should work fine as a class 1 USB audio device, no special driver required on most systems. Recent versions of W10 (Creator's Update or later) support it with the built-in class 2 driver. The separate driver package was for operating systems with no built-in support or those wanting to use UAC2.