These are for the two most popular usb sound adapters with the (1) PCM2704 chip and (2) COB (chip-on-board) chip.
(1) USB Sound Card Adapter with PCM2704 chip
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(2) 3D SOUND USB Sound Card Adapter with the COB chip
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How to configure a USB sound card with RetroPie.
You can support me by buying the usb sound card adapter using this link or you can donate any amount via PayPal.
[…] => Pinout Diagrams for the PCM2704 and 3D Sound(COB) USB Sound Card Adapters. […]