my mobo is intel dh61WW series link [http://m.snapdeal.com/product/intel-dh61ww-motherboard/1240069107] this mobo has only usb 2.0 Connectivity So I want to add usb-3.0 extension or pci card... My questions is it possible to connect usb 2.0 mobo with 3.0 usb pci card? and pci* 16 slot has graphic card is used... iam Looking for this http://m.snapdeal.com/product/anker-68uppcie4su-usb-pcie-express/1588425073 but in last its Saying 4 Pin connecter , some another USB 3.0 SaYing requires 20Pin connector look at this http://m.snapdeal.com/product/anker-68uppcie2s20pu-usb-pcie-express/919270790, help me regarding in this .-