Desktop PC Case Internal Front Panel 1. Product use: Because there are more and more USB devices now, when the USB ports on the chassis are not enough, you can use this device to directly convert the USB 19pin interface, 9PIN and audio on the board into 2 USB3.0 interfaces + 2 USB2 .0 and headphone-out and microphone jacks (or 4 USB 2.0 ports and headphone-out and microphone jacks), installed in the vacant optical drive position. In this way, the front USB interface and audio interface are provided, and there is no need to bend down to plug in the cable, which is very convenient 2. In addition, in order to save costs, the front panel of the chassis adopts AC-97 interface board. Currently, the front panel, panel cable and chassis on the market all use AC-97 interface, while the main board currently uses HD-AUDIO interface. As a result, there is no sound from a speaker, or the insertion detection jumps around. This problem can be solved with our panel. Real HD-AUDIO interface. 3. Hardware requirements: a USB3.0 19PIN interface, a 9PIN USB2.0 interface and a motherboard or adapter card supporting HD-AUDIO audio, and a chassis with a free optical drive. 4. Electroplated metal base and panel 5. Color: black silver white spray paint Packaging accessories: Optical drive panel x 1 Audio cable 9PIN-9PIN x 1 Fixing screw x 5