MSI X99S MPOWER SOcket LGA 2011-3 7.1-Channel HD Audio ATX Motherboard Features 1 Socket 2011-3 CPU (Max Support) i 7 Baseclock/ Hyper Transport 100 / 125 / 167 M Hz Chipset Intel X99 Express DDR4 Memory 2133/2200*/2400*/2600/2666*/2750*/3000*/3110*/3333* (*OC) Memory Channel Quad DIMM Slots 8 Max Memory (GB) 128 PCI-Ex 16 4 PCI-E Gen 40 lanes (16, 0, 0, 0) (16, 16, 0, 0) (16, 16, 0, 8) 28 lanes (16, 0, 0, 0) (16, 8, 0, 0) (8, 8, 8, 0) PCI-Ex 1 2 SATAIII 10 M.2 port 1 RAID 0/1/5/10 TPM (header) 1 LAN 10/100/1000*1 USB (Universal Serial Bus) 3.0 ports (Front) 4 USB (Universal Serial Bus) 3.0 ports (Rear) 8 USB (Universal Serial Bus) 2.0 ports (Front) 4 USB (Universal Serial Bus) 2.0 ports (Rear) 2 Audio ports (Rear) 5 + Optical SPDIF Form Factor ATX SLI Y Cross Fire Y