Hi there! Let me kick this story off by telling you how I'm new on the forum (yay!) and how my dad has this older 27" 2009 iMac he's been willing to upgrade though never has. I've built many systems over the years and have experience with opening up portable and desktop Macs. I'm looking to surprise him by upgrading his computer when he's gone for the weekend, but ran into something while looking at the possible upgrades. I'm looking to replace his HDD with a 512GB nvme SSD over PCIe. I realize that with an adapter, I could hook this up to the SATA connector, but that would limit the speed to 3GB/s. I'm wondering if it's at all possible to replace the PCIe Wireless Board (wifi) with an adapter (or directly) so I could gain more speed that way. My dad only uses the ethernet connection anyway, so it wouldn't be bothersome to him. Does anyone have experience with this?