BCM94331PCIEBT4CAX is 802.11?
I updated my MacbookPro8,2 early 2011 to have Bluetooth 4.0 by doing a direct swap of the airport card with a BCM94331PCIEBT4CAX from a 2012 MacBook Pro and running. But I can't seem to find out what wireless protocol it is: 802.11 a/b/g/n/ or ac.
Airport Extreme 802.11ac, OS X Yosemite (10.10.4)