Unfortunately, none of the audio boards we carry will work to load WAV files directly from a PC interface. They all require WAV/MP3 files to be loaded on an SD card which is then inserted into the audio board. The [WAV Trigger can be controlled by a PC via the serial protocol. We cover that control method and a bunch more about the WAV Trigger in our [Hookup Guide for the board. We have Hookup Guides similar to the one I linked for pretty much all of our SparkFun Originals including our [Audio Boards if you want to browse the other Audio boards we carry.](Audio Boards - SparkFun Electronics)](WAV Trigger Hookup Guide V11 - SparkFun Learn)](https://www.sparkfun.com/products/13660)