RAYSUN Dual 2 Port USB 3.0 A Type Female to 20 Pin Box Header Female Slot Adapter Cable for USB Ports Directly to Computer Motherboard 1, Dual USB 3.0 A Type Female to 20Pin Header Slot Adapter for Motherboard - External to Internal; 2, Add extra USB 3.0 ports to any PC with this dual USB 3.0 Female ports to motherboard Y cable; 3, Make your computer work faster with this cable; 4, Flexible design allow for cable routing and better fit; 5, Length: 27 cm / 10.6"; Cable OD : 6 mm / 0.24"