Keep this orientation in mind and just flip the fan over to change its airflow direction.

Now for the fun bit.

Step 4:With the fan in place, its time to connect the cable.

An NZXT case fan stood on top of an open PC case.

Cover image for YouTube video

A PC case fan and its screws laying on top of an open case.

An empty top fan slot on an NXT PC case.

A 120mm case fan being positioned into the top fan slot of a PC case.

A screwdriver tightens one of four mounting screws on a PC case fan.

The motherboard connection cable of a case fan, being pulled through a cable routing hole.

A case fan cable about to be connected to a motherboar fan header.