Sound card

2 main chips marked as follows:

ESS
AudioDrive
ES1688F D325
VB38565
Data sheet (PDF format)
ESS
Audio Drive
ES968F B315
V61008
On the circuit board is written
FCC ID: KLZ1105
P/N: MW-0203151
Ver 1.2A

The Sticker on the other side says
A16-001360960

FCC ID database says
Manufactured by Audiowave Technologies

Is it Audiowave Green16?

See ESS's site and Multiwave's site for potential drivers.