The link is to a trusted online retailer with one example of a USB 2 card with one
pinout connector for a Front case port. The card should come with directions, Also
the Internet should have other resources on how to do it with a bit of searching.
If you wanted to hook up two front USB ports, you need to locate a different card.
http://www.newegg.com/Product/Product.aspx?Item=N82E16815150097