Which PCI slot for WiFi?

unplanned bacon

Distinguished
Jan 11, 2014
1,649
1
19,815
The free slots on my motherboard (from memory) are PCI 16, PCI 14 and PCIE 1x2 which is where it would have gone had my graphics card not blocked them (although one isn't blocked but it would mean the card is right up against my graphics card's exhaust fan)

Also how can I replaced the expansion slot cover. I removed it and it turned out I didn't need to, but the provides replacements look look they're too small to get a screw through