My 2009 4,1 Mac Pro arrived from ebay today and I've spent a little time playing around. I've been researching for the past couple weeks a little of everything when it comes to these older machines. I'm aware that a certain firmware that is coming soon will support nvme natively and this is something I'm very interested in. On the other hand, I see a lot of people using sata3 pcie cards to install regular 2.5in drives to avoid the dragging speed of the sata2. I have already flashed the firmware of my 4,1 to 5,1 and installed high sierra on the 2tb hdd it came with. It is a 8 core (2x2.26ghz). The current boot Rom version follows: MP51.0089.B00 My question is should I stick it out and wait to buy a setup thats going to support nvme natively or just bite the bullet on a sata3 and regular ssd. If anyone could recommend a specific card for either format it would be appreciated! Also I'm not to experienced with raid setups so thats a road I'd rather not go down.