I've been looking for an affordable Mac friendly pci Sata controller. Lightbulbfun linked to this acard pci card in a previous thread & at $16 a pop I gave it a shot. I am happy to report that it works like a charm - plug n play in Leopard. https://www.ebay.com/itm/152459215925 It's bootable (I haven't tried yet) & works back to 7.5. The only weird thing is that the drive icons are scsi icons, but yanno no biggie. Temporarily oos. I hope the seller gets more as I need a couple more.