1. Purpose: The motherboard has a USB3.0 interface, but the chassis does not have a front USB3.0 interface. You can use the USB 3.0 19pin to dual 9Pin adapter to switch to the front USB2.0 interface 2. The interface speed is 480Mbps, and the working environment is -20 to 75 degrees Celsius 3. Support USB hot plug function 4. For Win XP, for Win 7, for Win 8, for Win 10, for OS X 5. Material: metal, plastic
