2 Ports USB 3.0+ 4 Ports USB 3.0 5.25' Internal CD-ROM Bay Front Panel 6 Ports USB Hub,Motherboard USB 20 pin to 2 x USB 3.0, 10 pin to 4 x USB.

2 Port USB 3.0 & 4 Port USB 2.0 5.25 inch internal front panel USB 20pin to 2x USB 3.0 Female USB 10pin to 4x USB 2.0Female USB 3.0 20pin and USB 2.0 9pin header on motherboard is needed Metal case