Hey guys, I have removed a Nvidia Gefore GTX 675m from an ALienware m17x R4. I am selling it on eBay and I listed the specifications as the bus support being PCIe 2.0. As a matter of fact, it says directly on Nvidia's website under product specs for the GTX 675m that it is indeed PCIe 2.0. The issue is , 2 potential buyers already have sent me questions asking me why I'm saying its pci express 2.0 when they are under the impression it is MXM. I have built 2 desktops and never even heard of MXM....lol. So what exactly is the deal here? Is it PCI express 2.0 or MXM compatible....or are they backwards compatible? I'm very confused as some websites say one thing and other sites say another thing. Thank you for reading.