I bought this board, along with an Intel i3 CPU, to build a Hackintosh server running Mac OS X 10.7. I wanted to use the internal graphics on the board, but my CPU only supports Intel HD2000 graphics (but the board supports Intel HD3000 as well, which will work with 10.7), which are, unfortunately, not supported by Lion at this time. I had to chip in an extra $30 for a graphics card, and after that the OS worked fine. Since it's a storage server, all four SATA ports on the board are currently in use. I know a lot of other reviewers have had problems with the graphics card blocking the SATA ports, but I installed an EVGA GeForce 8400GS and still have access to all four of my SATA ports with no issues. I don't have much else to say about this motherboard besides that it's a great, inexpensive, entry-level motherboard, and it works well with OS X Lion without very much tinkering.