LGA1151 Chipset: Intel Z170 Express Memory: 4x DDR4-3600(OC)/ 3200(OC)/ 3000(OC)/ 2800(OC)/ 2600(OC)/ 2400/ 2133 DIMM Slots, Dual Channel, ECC, Unbuffered, Max Capacity of 64GB Slots: 2x PCI-Express 3.0 x16 Slots, 2x PCI-Express 3.0 x1 Slots, 3x PCI Slots Multi-Graphics: Supports AMD 2-Way CrossFireX Technology SATA: 6x SATA3 Ports, Support RAID 0, 1, 5, 10; 2x SATA Express Ports Audio: Realtek ALC1150 7.1-Channel High Definition Audio CODEC, Supports S/PDIF Output