You can use a 51pin connector with this adapter without worrying about compatibility issues. Checked! In the most "hard" scenario, 20 pins are bonded as well. Never activate the WiFi module if the antennas are missing. There's a risk of fire! The MAIN 1 antenna is black, while the AUX 2 antenna is white. Intel modules that are ac-compatible (that is, those support the 8022022ac standard) can be found here: ? id=14:59499
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