USB 3.1 Front Panel Header to USB 3.0 20Pin Header Extension Cable 20cm Compatible for compatible with ASUS Motherboard Specification: Material: ABS Color: Black Length: 20cm Weight: 26g Features: 1.For compatible with ASUS Motherboard. Only support usb3.1/usb3.0 device, it can't work at USB2.0(480Mbps). 2.USB 3.1 Front Panel Header to USB 3.0 20Pin Front Panel HeaderExtension Cable 20cm 0.65ft. 3.The USB 3.1 port interface is using the USB 3.0 pin set and more. It is design to be backwards compatible. 4.There are no official release of the specs for the USB 3.1 header yet (as of this writing), But first motherboard with this is the compatible with ASUS-ROG MAXIMUS IX FORMULA,STRIX Z270I/Z270G etc. 4 5.Connector1: USB 3.0;Front Panel Header Connector2: USB 3.1;Front Panel Header.Length: 20cm Package Included: 1X Extension Cable Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. For compatible with ASUS Motherboard. Only support usb3.1/usb3.0 device, it can't work at USB2.0(480Mbps). USB 3.1 Front Panel Header to USB 3.0 20Pin Front Panel HeaderExtension Cable 20cm 0.65ft. The USB 3.1 port interface is using the USB 3.0 pin set and more. It is design to be backwards compatible. There are no official release of the specs for the USB 3.1 header yet (as of this writing), But first motherboard with this is the compatible with ASUS-ROG MAXIMUS IX FORMULA,STRIX Z270I/Z270G etc. Connector1: USB 3.0 Front Panel Header Connector2: USB 3.1 Front Panel Header.Length: 20cm