Features: No external power needed plug and for play driver less installation. With 2 USB 3.0 + 2 USB 2.0 + Audio+ Mic ports, data transfer rate up to 10Gbps Downwards compatible to older USB 2.0 and USB 1.1 standards. Comfortable and fast connection of your USB peripheral due to USB 3.0 high speed technology. The robust metal construction for a long operating life and a high longevity. Specifications: Porta : 2Ports USB3.0 + 2Ports USB2.0 + Audio +Mic Fits inside 3.5 inches open bay Material: Metal Color: Black Cable length: 80cm/31.5in Size: approx 99x148x42mm/3.9x5.83x1.65in Note: Manual measuring, please allow 1 ~ 3mm error,. Due to the difference between different monitors, the picture may not reflect the actual color of the item. The item style is the same as shown in the picture. Package includes: 1 PC x Front Panel 1 PC x Accessories Kit