Gigabyte Ultra Durable GA-Z170X-UD5 Desktop Motherboard - Intel Z170 Chipset - Socket H4 LGA-1151 - ATX - 1 x Processor Support - 64 GB DDR4 SDRAM Maximum RAM - 3.33 GHz, 3.30 GHz, 3.20 GHz, 3 GHz, 2.80 GHz, 2.67 GHz, 2.40 GHz, 2.13 GHz, 3.80 GHz, 3.73 GHz, 3.67 GHz, ... (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (O.C.), (...) Memory Speed Supported - DIMM, UDIMM - 4 x Memory Slots - CrossFireX, SLI Support - Serial ATA/600 RAID Supported Controller - 0, 1, 5, 1