which adaptor do you use to connect USB 3.0 ports to 2.0 headers

[JianweiGao]

when i buy all the parts from this website http://pcpartpicker.com/list/DNw7Cy I realized that the USB ports and header won't connect, so i decide to buy a adaptor. But i can't decide which one to buy. Can anyone help me. (I am building a PC first time so i am new,thx for pro's help)

 

[clutchc]

One of these will convert the case's USB 3.0 connector to the motherboard's USB 2.0 headers, if that is the direction you are wanting to go.
https://www.amazon.com/CNCT-19-Pin-USB3-0-USB2-0-Adapter/dp/B00V3F44JO/ref=pd_lpo_147_lp_t_4?_encoding=UTF8&psc=1&refRID=71MCDYJ3E9K1VV24198B

 

[Calvin7]

Apevia CVTUSB32 USB 3.0 to USB 2.0 Converter Cable
http://www.newegg.com/Product/Product.aspx?Item=N82E16812201039&Tpk=N82E16812201039