Looking for a wifi card, yet I don't know what'd fit?

[Straain]

SO, I currently use a very bad USB WiFi adapter that causes a lot of connection issues, so I'm looking to buy a wireless card. Yet, I don't know if I should get a PCI or PCIe card. My motherboard is:

ASUS M5A78L-M/USB3

If someone could please let me know that'd be great.

 

[RababNoor]

http://pcpartpicker.com/part/gigabyte-wireless-network-card-gcwb867di