Most laptops have an m.2 key E slot for the wifi slot but it's rarely mentioned because noone ships a laptop without wifi and they don't want to confuse people.

Most laptops have an m.2 key E slot for the wifi slot but it's rarely mentioned because noone ships a laptop without wifi and they don't want to confuse people. Yes, most laptops only have a single M.2 key M slot but that's not this card is after.