The Maximus VI has two additional SATA ports, better onboard audio, and includes a mini PCI slot. The Z87 has more PCI-E slots overall. And, of course, the Maximus is a micro ATX form factor, where the Z87-A is a standard ATX.
The Maximus VI has two additional SATA ports, better onboard audio, and includes a mini PCI slot. The Z87 has more PCI-E slots overall. And, of course, the Maximus is a micro ATX form factor, where the Z87-A is a standard ATX.