The most striking aspect of the Z87 Extreme11/ac is its 22 SATA ports. 16 of them can be used for professional SAS drives and are provided by LSI SAS3008 controllers. Two of the 22 ports are combined with two mSATA ports, located between the PCI-Express slots. Thanks to a PLX 8747 chip the board is suitable for both 4-way Crossfire and 4-way SLI. Other special features include two Intel Thunderbolt ports.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips