Enlabs USB 3.0 Motherboard 20-Pin Header to 2x USB 3.0 A Female Adapter Cable w/ Full Profile PCI Slot Bracket ,2 Ports USB 3.0 Back Panel Expansion Bracket to 20Pin - Black,1.64ft - Newegg.com
USB 3.0 20 Pin Male To Female Header Motherboard Extension Adapter Connect Cable | eBay