Product Use: Because more and more USB devices are now available, the USB port on the chassis is not enough! You can use this device to directly convert the USB 9 Pin interface and audio on the board into two USB2.0 ports and headphone output and microphone interface, which are installed in the idle floppy drive position. The front USB interface and audio interface are provided. Very convenient! In addition, because the front panel of chassis adopts the AC-97 interface board for cost-effective. Currently, the front panel, panel line and chassis on the market are AC-97 interfaces, but the motherboard is currently HD-AUDIO interface, resulting in There are no sounds in the one speakers, or they are all test and inserted to and fro. This problem can be solved with our panel-True HD-AUDIO interface. Hardware Requirements: One motherboard or converter card with a 9PIN interface and HD-AUDIO audio, with a free floppy drive chassis. Interface: 2 X USB2.0 Interface, 2 X 3.5mm Audio Interface Colour:Black Material:plastic+metal Package Contents: 1 x USB 2.0 Audio Floppy Panel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.