MSI X99 XPOWER ac Socket LGA 2011-3 7.1-Channel High Definition Audio E-ATX Motherboard The MSI Overclocking motherboards are designed based on four principles: Continuous implementation of professional overclockers' feedback Continue MSI's leading position in power efficiency & stability The best overclocking tools Infuse the DNA of MSI's LIGHTNING graphics cards Socket 2011-3 CPU (Max Support) i 7 Baseclock/ Hyper Transport 100 / 125 / 167 M Hz Chipset Intel X99 Express Chipset DDR4 Memory DDR4 2133/2200*/2400*/2600*/2666*/2750*/3000*/3110*/3333* (*OC) Memory Channel Quad DIMM Slots 8 Max Memory (GB) 128 PCI-Ex 16 5 PCI-E Gen Gen 3 PCI-Ex 1 1 SATA Express 1 SATAIII 10 (2 x ports reserved for SATA Express port) M.2 port 1 RAID 0/1/5/10 (SATA1~6 only) LAN 10/100/1000*2 USB (Universal Serial Bus) 3.0 ports (Front) 4 USB (Universal Serial Bus) 3.0 ports (Rear) 10 USB (Universal Serial Bus) 2.0 ports (Front) 5 USB (Universal Serial Bus) 2.0 ports (Rear) 2 Audio ports (Rear) 5 + Optical S/PDIF OUT VGA Max Share Memory (MB) 1760 Form Factor E-ATX SLI Y 4-way SLI Y Cross Fire Y