Asus LGA1155/Intel Z77/DDR3/Quad-CrossFireX/Quad-SLI/SATA3/USB3.0/A/2 GBE/ATX Motherboard P8Z77 WS Quad-CrossFireX & Quad-SLI Chipset: Intel Z77 Memory: 4x DDR3-2600OC/2400OC/2200OC/2133OC/1866/1600/1333/1066 DIMM Slots, Dual Channel, Max Capacity up to 32 GB Slots: 4x PCI-Express 3.0 x16 Slots (three run on x8, Supports ATI 4-Way CrossFireX & nVidia 4-Way SLI); 2x PCI-Express 2.0 x1 Slots SATA: 4x SATA2 Ports (support RAID 0/1/5/10), 4x SATA3 Ports (two support RAID 0/1/5/10, two support RAID 0/1); 2x eSATA3 Ports