ok we use the same wifi and Bluetooth cards (actually the BT card may be a little different but that doesn't matter). Also, I had to remove the old BT card in order for the iMac to recognize the new one on the combo card.
This is what I had to buy:
BCM943602CS or BCM94360CSAX- $18
a compatible M.2 (NGFF) to mini PCIe adapter (also named as BCM94360CD to mini PCIe adapter)-$6
3x U.FL female to MHF4 male plug antenna adapter cable-$3 (each) You need these antenna adapters because the antenna terminals on the new card are smaller than the old card so you have to adapt all 3 antenna wires down to the correct size.
And the correct antenna position on the new card would be
- white or gray cable (topmost connector) J0
- black cable (middle connector) J1
- blue cable (lowermost connector) J2
Lucky for you is that I don't think you need to upgrade your cpu to install macOS. But if you do for some reason, I have a E8135 that would support macOS I could send you. I bought it on eBay cheap but it won't work in 2007 iMac because it has 1066 FSB and 7,1 iMac only supports 800
View attachment 683968