The ASRock Z77 Pro4-M is based on the Intel Z77 Express chipset. It sports a 4+2 phase power design and all gold Japanese manufactured conductive polymer capacitors. The board features all the chipset has to offer combined with some added features as well. Among them are; PCI-Express 3.0, native USB 3.0, LucidLogix Virtu MVP, Intel® Rapid Start Technology and Smart Connect Technology, SATA 6Gb/s support, USB 3.0, AMD “Quad CrossFire” and CrossFire support. SLI / Quad-SLI support is not mentioned on the Z77 Extreme4, but we suspect it should work just fine.
HARDOCP – Introduction – ASRock Z77 Pro4-M LGA 1155 Motherboard Review