Intel® C621 motherboard with quad-strength graphics support and 12 DDR4 memory slots Up to 4-Way NVIDIA® SLI® and AMD® Crossfire X™ on demand Two-way Xeon® CPU OC tuning for extreme performance Superb scalability and connectivity with onboard U.2, M.2, and USB 3.1 Type-C and Type-A Built with premium components for excellent power efficiency Easy Management and maintenance with ASUS Control Center (ACC) management software and USB BIOS Flashback CPU * Refer to www.asus.com for CPU support list Dual Intel® Socket P (LGA 3647) for Intel® Xeon® Scalable Processors Family (205W) Chipset Build in Intel® C621 Memory 12 x DIMM, Max. 768GB, DDR4 2666/2400 MHz RDIMM, LR-DIMM Memory * Please refer to ASUS AVL for the latest update. * 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. Graphic Integrated Graphics Processor VGA port(Optional) - Supports VGA with max. resolution 1920 x 1200 @ 60 Hz Aspeed AST2500 with 64 MB VRAM Multi-GPU Support Supports NVIDIA® 4-Way SLI™ Technology *1 Supports AMD 4-Way CrossFireX Technology *1 Expansion Slots 3 x PCIe 3.0 x16 (x16 mode) 2 x PCIe 3.0 x16 (Single at x16, dual at x8/x8) 2 x PCIe 3.0 x16 (x8 mode) Storage Intel® C621 Chipset : 8 x SATA 6Gb/s port(s), Support Raid 0, 1, 5, 10 ASMedia® SATA 6Gb/s controller : 2 x SATA 6Gb/s port(s), 4 x U.2 connector, 1 x M.2 Socket 3, with M Key, type 2242/2260/2280/22110 storage devices support (both SATA & PCIE mode) LAN Intel® I210-AT, 2 x Gigabit LAN Controller(s) Audio Realtek® S1220A 7.1-Channel High Definition Audio CODEC *2 - Power pre-regulator reduces power input noise to ensure consistent performance - Impedance sense for front and rear headphone outputs - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking - High quality SNR stereo playback output and 113 dB SNR recording input (Line-in) - Front panel audio connector (AAFP) - Supports up to 32-Bit/192kHz playback Audio Feature : - DTS Connect - DTS Headphone:X - Optical S/PDIF out port(s) at back panel - 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 USB Ports ASMedia® USB 3.1 Gen 2 controller : 2 x USB port(s) (2 at back panel, , Type-A + USB Type-CTM) Intel® C621 Chipset : 8 x USB 3.1 Gen 1 port(s) (4 at back panel, , 4 at mid-board) Intel® C621 Chipset : 4 x USB 2.0 port(s) (2 at back panel, , 2 at mid-board) Workstation Feature ProCool Power Connector USB BIOS Flashback ASUS PIKE SAS upgrade kit*3 Special Features Gamer's Guardian: - DIGI+ VRM - SafeSlot ASUS Digital Power Design : - Industry leading Digital 7 + 1 Phase CPU Power Design - Industry leading Digital 2 Phase DRAM Power Design ASUS Exclusive Features : - Front Panel USB 3.0 Support ASUS Q-Design : - ASUS Q-Shield - ASUS Q-Code - ASUS Q-DIMM M.2 and U.2 Onboard (The Latest Transfer Technology with up to 32Gb/s Data-transfer Speeds for M.2 and U.2) Back I/O Ports 1 x PS/2 keyboard/mouse combo port(s) 2 x LAN (RJ45) port(s) 2 x USB 3.1 Gen 2 *4 4 x USB 3.1 Gen 1 , 4 x USB 2.0 1 x Optical S/PDIF out 1 x USB BIOS Flashback Button(s) 1 x 8-channel Audio I/O Internal I/O Ports 2 x USB 3.1 Gen 1(up to 5Gbps) connector(s) support(s) additional 4 USB 3.1 Gen 1 port(s) 1 x USB 2.0 connector(s) support(s) additional 2 USB 2.0 port(s) 1 x M.2 Socket 3 1 x TPM header 1 x COM port(s) connector(s) 10 x SATA 6Gb/s connector(s) 1 x VROC_HW_Key 2 x CPU Fan connector(s) (2 x 4 -pin) 7 x Chassis Fan connector(s) *5 2 x 8-pin EATX 12 V Power connector 1 x 24-pin EATX Power connector(s) 1 x VGA connector(s) 1 x Front panel audio connector(s) (AAFP) 1 x AUX panel header(s) 1 x SMBus header(s) 1 x 6-pin EATX 12V_3 Power connector 1 x System panel connector 4 x U.2 Connector (support U.2 NVMe device) Form Factor EEB Form Factor 12 inch x 13 inch ( 30.5 cm x 33 cm ) Note * Dual Intel® Socket P/LGA 3647 (Square) *1 Actual number of multi-graphic support differes per Vendors' graphic cards. Please check with vendor beforehand. *2 Due to limitation in HDA bandwidth, 32-Bit/192kHz is not supported for 8-channel audio. 32-Bit/192kHz is only available under Windows 10 *3 Please check AVL list for supported add on card *4 1 x Type A, 1 x Type C *5 5 x Front, 2 x Rear