0.15m (0.5ft) - USB 2.0 Motherboard Header (IDC 5-Pin) Female Connector - USB 3.0 Motherboard Header (IDC 20-Pin) Male Connector - 30 Days Store Exchange-Only Mfg. Warranty
Price : $10.00*Qty.
(* - Cash Discounted Price (Reg. $10.50))
if you case has only External USB3.0 port and usb3.0 cable, and your motherboard has only on-bord USB2.0 ports, this CBL-USB2F-USB3M connect the motherboard USB2.0 port header to your case USB3.0 cable header