Features: 1.4 Ports: The 3.5 inch front panel has 4 ports in total, providing two external USB 3.0 ultra high speed ports, one high definition audio output port and one microphone input port. 2.Good Stability: The conductor of USB3.0 high speed cable adopts tinned copper and three shielding layers, which improves the stability of data transmission. 3.Strong Anti Interference: The audio interface of USB 3.0 front panel hub adopts high definition audio scheme. Compared with AC97 of the chassis, it has larger transmission bandwidth, high playback accuracy and strong anti interference. 4.Compatible System: USB front panel adapter is compatible with for Windows XP/Vista/Server/7/8/10,for Linux and other operating systems. 5.Convenient Operation: USB 3.0 front panel is easy to operate and use, without installing any driver or external power supply. It can be used by plugging in the interface, and it supports hot plugging. specification:Item Type: USB Front Panel Material: Iron Product Size:Approx. 102 x 94 x 25mm / 4.0 x 3.7 x 1.0in Expansion Interface:2 x USB3.0,HD AUDIO Installation Location: Front Floppy Drive Location Installation Line Length:Approx. 74cm / 29.1in Scope of Application: It is Suitable for Extending the Front I/O Interface of the Computer Case with a 3.5inch Floppy Drive, Facilitating the Plugging and Unplugging of USB and Audio Devices, and Using the Motherboard Expansion Port. PackageList:1 x USBFrontPanel 1 xHD AUDIO Cable 5 x Screw 1 x Screwdriver NoteThe audio interface is a straight HD AUDIO interface, which can only be used if the motherboard supports the HD AUDIO interface. At present, all motherboards on the market support the HD AUDIO interface. If the audio output is set to AC 97 in BIOS, please turn it back to HD AUDIO interface, otherwise there will be no sound.