Product use: because now more and more USB devices, the case of the USB port is not enough time! You can use this device directly to the 19PIN interface and the audio board into two USB3.0 interface and output interface headset and microphone, installed in the idle CD-ROM position. This provides the USB interface and the audio interface front, no longer have to stoop to plug the line, very convenient! In addition to the provincial cabinet the cost of the front panel using AC-97 interface board, the front panel on the market at present, the panel line and the chassis is the AC-97 interface, while the motherboard is the HD-AUDIO interface, resulting in a horn sound, or jump around insertion detection. With our panel, we can solve this problem. The HD-AUDIO interface is true. With 20Pin USB3.0 interface board or adapter card, support HD HD Audio 9 pin interface of the motherboard