Specification:CPUIntel Socket 2066 Core X-Series Processors * The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types* Refer to www.asus.com for CPU support listChipsetIntel X299MemoryIntel Core X-series Processors (6-core above)8 x DIMM, Max. 128GB, DDR4 4133(O.C.)/3600(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory Intel Core X-series Processors (4-core)4 x DIMM, Max. 64GB, DDR4 4133(O.C.)/3600(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory Supports Intel Extreme Memory Profile (XMP)* Hyper DIMM support is subject to the physical characteristics of individual CPUs. * 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.Multi-GPU SupportSupports NVIDIA 3-Way SLI Technology *Supports AMD 3-Way CrossFireX Technology *PCI Slots44-Lane CPU-2 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode) 28-Lane CPU-1 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 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) 2 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode)StorageIntel X299 Chipset : 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)*11 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)*21 x U.2 connector6 x SATA 6Gb/s port(s)Support Raid 0, 1, 5, 10Intel Rapid Storage Technology 15 supportSupport Intel Rapid Storage Technology enterprise 5.1 for X-Series(6-core and above) CPU RAIDSupports Intel Smart Response TechnologyIntel Optane Memory ReadyUSBIntel X299 Chipset : 6 x USB 3.1 Gen 1 port(s) (4 at back panel, , 2 at mid-board)Intel X299 Chipset : 6 x USB 2.0 port(s) (4 at back panel, , 2 at mid-board)ASMedia USB 3.1 Gen 2 controller : 2 x USB 3.1 Gen 2 port(s) (2 at back panel, , Type-A + USB Type-CTM)ASMedia USB 3.1 Gen 2 controller : 1 x USB port(s)AudioRealtek ALC S1220A 7.1-Channel High Definition Audio CODEC featuring Crystal Sound 3- Impedance sense for front and rear headphone outputs- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers- Supports : Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking- High quality 120 dB SNR stereo playback output (Line-out at rear) and 113 dB (Line-in)Audio Feature :- DTS Connect- DTS Headphone:X - Audio amplifier: Provides the highest-quality sound for headphone and speakers- Premium Japanese audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity- Unique de-pop circuit: Reduces start-up popping noise to audio outputs Separate layer for left and right track, ensuring both sound deliver equal qualityPremium Japan-made audio capacitors provides warm, natural, and immersive sound with exceptional clarity and fidelityLANIntel I210-AT, 2 x Gigabit LAN Controller(s)Form FactorATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )WarrantyThree Years Manufacturer Warranty