ASUS X299 PRO WS ATX MB 4xDDR4, 5xPCIe, 1xM.2, 6xSATA, RAID, 5xUSB3.0, 1xUSB TypeC, 2 x Intel LAN port,

Intel LGA 2066 ATX motherboard with DDR4 4133MHz, dual M.2 and M.2 heatsink, U.2, and USB 3.1 Gen 2 connectors. 5-Way Optimization: One-click, system-wide tuning, delivers optimized overclocking and intelligent cooling for a diverse range of workloads. Industry-leading cooling options: Comprehensive controls for fans and water pumps, via Fan Xpert 4 software or the acclaimed ASUS UEFI. Ultra-efficient VRM heatsink: Metal fin array connected to large surface area via a heatpipe tames X299 thermals to enable unthrottled performance. Next-gen transfer speeds: Up to 32Gbps dual M.2 and U.2, plus up to 10Gbps USB 3.1 Type-A and Type-C connections. CPU Intel® Socket 2066 Core™ X-Series Processors * Refer to www.asus.com for CPU support list * The Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types Chipset Intel® X299 Memory Intel® Core™ X-series Processors (4-core) Intel® Core™ X-series Processors (6-core above) 4 x DIMM, Max. 64GB, DDR4 3600(O.C.)/2400/2666/4133(O.C.)/2133 MHz Un-buffered, Non-ECC Memory * Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU. Supports Intel® Extreme Memory Profile (XMP) * Hyper DIMM support is subject to the physical characteristics of individual CPUs. 8 x DIMM, Max. 128GB, DDR4 2133/2666/2400/3600(O.C.)/4133(O.C.) MHz Non-ECC, Un-buffered Memory Multi-GPU Support Supports AMD 3-Way CrossFireX™ Technology * Supports NVIDIA® 3-Way SLI™ Technology * Expansion Slots 1 x PCIe 3.0 x16 (x4 mode) 2 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode) 16-Lane CPU- 1 x PCIe 3.0 x16 (x8 mode) 44-Lane CPU- 28-Lane CPU- 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x4 (x4 mode) 1 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x4 (x4 mode) 2 x PCIe 3.0 x16 (x16 mode)