1. Product use: Installed in the idle floppy drive position, providing the front USB interface and audio interface, no need to bend down to plug in the cable, very convenient 2. Hardware requirements: the motherboard needs to have a 19Pin and audio interface to use 3. This panel is installed to the floppy drive position of the chassis, that is, the size of a 3.5-inch floppy drive, and the size is 102.2 wide x 25.2 high x 94mm 4. The audio interface is HD-AUDIO interface, which can only be used if the motherboard supports HD-AUDIO audio interface. Currently, the motherboards on the market all support HD-AUDIO interface. If only one channel has sound, please go to the motherboard official website to download the sound card driver to support HD-AUDIO. 5. Because the product is assembled later, it may be a little bit different from your PC case color and size