Intel VGA driver - not essential. it will allow your CPU to render graphics, if you plug a monitor into the motherboard.
Realtek HD Audio - MUST HAVE. If you use the motherboards audio, you will need this.
Killer Network Driver (Driver Only) - MUST HAVE. If you plan on using ethernet to connect to the internet. (I personally don't really like Killer NIC but it's what your working with so you might as well use it.
Intel Serial IO drivers - optional - Not entirely sure on what this one does, but it won't hurt to have. (i'm guessing it has something to do with the plugs on the back of the mobo)
ASMedia USB 3/3.1 - MUST HAVE. If you want to take full advantage of USB 3 you'll want this.
Intel Chipset Driver - Optional. Windows will probably automatically download this one.
If you are Installing Windows 8 or 10 you will find that Windows will automatically download and install most of these drivers.
Hope this helps a little.
PROTIP: save all these files in a safe space, so if you have to re-install windows, you got everything already to go, but just make sure they aren't out of date when you do.