I'd like to upgrade my MBP 4,1(early '08, pre-Unibody) but as it has a Broadcom card I'm afraid I'll lose WiFi. So far, I know from my MB 5,2 that the Atheros 5416 is a Sierra-compatible N Airport card, but I don't know what to translate that to in terms of an Apple P/N. I'm also trying to avoid taking the computer apart(again) if I can avoid it. Does anyone know the P/N of the above card or of an otherwise compatible mini PCIe N WiFi card? BTW, I REALLY don't like taking these pre-Uni MBPs apart, and want to both do a repaste and upgrade the SSD in it before I take it apart. I'm trying to line up a card that I know will work before I venture into the computer.