Not had time to turn my new computer on yet, off to work in a minute

Can someone confirm the USB3 cables sticking out the back of my tower have something to do with making the USB3 ports at the front/top work.

Case is a Fractal Midi R2, (2 USB3 ports on top of case& 2 USB3 ports on the front Scan card reader) motherboard is an Asus Z170 Pro Gaming model.

Thank you