Antennas are necessary. Without them you'll have extremely weak (or no) signal reception.Can you use those WIFI cards without antennas in AM4 motherboards? (They look like mSATA drives)?
You have read wrong.I read WIFI built into motherboards don't need an external antenna.
Well you’re wrong you need the antenna If this is an add in PCI network cardI read WIFI built into motherboards don't need an external antenna.