Couldn't find documentation about it, but in visual inspection the slot seems to fit both A and E key
https://files.catbox.moe/gri9tx.png
(mobo picture is 3rd picture from https://www.gigabyte.com/Motherboard/GA-AB350M-DASH-rev-10#kf, wifi card picture, https://www.newegg.com/derapid-de-axe210ngw-m-2/p/0XM-02WM-00021?Description=m.2+wifi )