![](https://img.alicdn.com/imgextra/i1/2039177670/O1CN01TPv8HK26WuSlxMAzF_!!2039177670.png?flg=hn_webmjs_2039177670_17300547661)
USB3.0 (main board front expansion interface)TO USB2.0 9P (pin header) signal transfer cable
Many mid-range and high-end motherboards now have 20P 3.0 interfaces(Refer to the picture below)
![](https://img.alicdn.com/imgextra/i4/2039177670/TB2XHv6qoOWBKNjSZKzXXXfWFXa_!!2039177670.png)
Plug in the 20PIN, it can be converted to 9-pin, and it can be directly connected to the USB2.09PIN on the front of the chassis! !