PSA - Don't try installing full-height WLAN cards in WWAN port!

I have had to disassemble and reassemble my Dell Latitude 3330 three times now. Although the WWAN cards for this laptop are marked as low power PCIE, putting a WLAN card in there has no effect :-(

I read some rare anecdotal evidence stating that it worked in certain Dell laptops... but the majority are ported through USB. Be warned!