I’ve read reports of people successfully upgrading their 2012 iMac airport/Bluetooth cards to take advantage of 802.11ac and Bluetooth 4.0. I just got upgraded to gigabit internet, something I want to take advantage of. I see two options. The inelegant one is to get a usb dongle like this one: https://www.amazon.com/gp/product/B07PKMFPF7/ref=ox_sc_act_title_1?smid=A3KHUM65I50XQR&psc=1 However the much more elegant solution IMO is to upgrade the airport card in the iMac with something like this: https://www.ebay.com/p/Broadcom-Bcm...rport/1839253691?iid=282015385309#UserReviews I’ve heard mixed reports of Bluetooth not working under Mac, or WiFi antenna incompatibility. The latter I have a hard time believing as 802.11ac sits on the same 5GHz as 802.11n. The Bluetooth compatibility issue I’ve read mixed reports on. Does the listed airport card was in the 2013 iMac. Do newer iMacs have even faster cards? Are they all compatible?