ASRock X99 Extreme4 Motherboard ATX Intel X99 LGA2011-3 DDR4 SATA3 M. Original quality not include original box or parts. Come with the OEM I/O shield, updated the latest BIOS. Without CMOS battery for safe sending. Supports Intel Core i7 and Xeon 22-Core Processors Family for the LGA 2011-3 Socket. Digi Power design. 12 Power Phase design. Supports Intel Turbo Boost 2.0 Technology. Supports Untied Overclocking Technology. Quad Channel DDR4 Memory Technology. 8 x DDR4 DIMM Slots. Supports DDR4 3000+(OC)/2933(OC)/2800(OC)/2400(OC)/2133 non-ECC, un-buffered memory. Supports non-ECC RDIMM (Registered DIMM). Supports DDR4 ECC, un-buffered memory/RDIMM with Intel Xeon processors E5 series in the LGA 2011-3 Socket. Capacity of system memory: 128GB (with Core i7 CPU Broadwell-E) or 64GB (with Core i7 CPU Haswell-E) or 256GB (With Xeon CPU). Supports Intel Extreme Memory Profile (XMP) 2.0. 15? Gold Contact in DIMM Slots. Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation. Please refer to Memory Support List on ASRock’s website for more information. 2 x 128Mb AMI UEFI Legal BIOS with multilingual GUI support (1 x Main BIOS and 1 x Backup BIOS). Supports Secure Backup UEFI Technology. ACPI 5.0 Compliant wake up events. SMBIOS 2.7 Support. CPU, DRAM, PCH 1.05V, PCH 1.5V, VPPM Voltage Multi-adjustment. 7.1 CH HD Audio with Content Protection (Realtek ALC1150 Audio Codec). Premium Blu-ray Audio support. Supports Surge Protection (ASRock Full Spike Protection). Supports Purity Sound 2. Nichicon Fine Gold Series Audio Caps. 115dB SNR DAC with differential amplifier. TI NE5532 Premium Headset Amplifier (Supports up to 600 ohm headsets). Direct Drive Technology. EMI shielding cover. PCB isolate shielding. Supports DTS Connect. Gigabit LAN 10/100/1000 Mb/s. Giga PHY Intel I218V. Supports Lightning/ESD Protection (ASRock Full Spike Protection). Supports Energy Efficient Ethernet 802.3az. 1 x PCI Express 2.0 x1 Slot. Supports AMD Quad CrossFireX, 3-Way CrossFireX and CrossFireX. Supports NVIDIA Quad SLI, 3-Way SLI and SLI. 15? Gold Contact in VGA PCIe Slot (PCIE1 and PCIE3). If you install CPU with 28 lanes, PCIE1/PCIE3/PCIE5 will run at x16/x8/x4. 2 PCI Express module is installed, PCIE5 slot will be disabled. If you install CPU with 28 lanes, 3-Way SLI is not supported. To support 3-Way SLI, please install the CPU with 40 lanes. 10 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1, RAID 5, RAID 10 and Intel Rapid Storage 13), NCQ, AHCI, Hot Plug and ASRock HDD Saver Technology. 1 x eSATA Connector, supports NCQ, AHCI and Hot Plug. 1 x Ultra M. 2 Socket, supports M Key M. 2 SATA3 6.0 Gb/s module and M. 2 PCI Express module up to Gen3 x4 (32 Gb/s). S_SATA3_3 connector is shared with the eSATA port, S_SATA3_2 connector is shared with Ultra M. RAID is supported on SATA3_0 SATA3_5 ports only. 1 x COM Port Header. 1 x TPM Header. 1 x Power LED Header. 2 x CPU Fan Connectors (1 x 4-pin, 1 x 3-pin) (Smart Fan Speed Control). 3 x Chassis Fan Connectors (1 x 4-pin, 2 x 3-pin) (Smart Fan Speed Control). 1 x Power Fan Connector (3-pin). 1 x 24 pin ATX Power Connector. 1 x 8 pin 12V Power Connector (Hi-Density Power Connector). 1 x HDD Saver Connector. 1 x PCIe Power Connector. 1 x Front Panel Audio Connector. 1 x Thunderbolt AIC Connector. 2 x USB 2.0 Headers (support 4 USB 2.0 ports) Supports ESD Protection (ASRock Full Spike Protection). 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) Supports ESD Protection (ASRock Full Spike Protection). Please update to the latest BIOS to support ThunderboltT technology. 1 x PS/2 Mouse Port. 1 x PS/2 Keyboard Port. 1 x eSATA Connector. 1 x Optical SPDIF Out Port. 4 x USB 2.0 Ports Supports ESD Protection (ASRock Full Spike Protection). 4 x USB 3.1 Gen1 Ports Supports ESD Protection (ASRock Full Spike Protection). 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED). 1 x Clear CMOS Switch. HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone. CPU, Chassis temperature sensing. CPU, Chassis, Power Fan Tachometer. CPU, Chassis Quiet Fan (Auto adjust chassis fan speed by CPU temperature). CPU, Chassis Fan multi-speed control. Voltage monitoring: +12V, +5V, +3.3V, CPU Input Voltage, CPU Internal Voltages. ATX Form Factor. 2oz Copper PCB. High Density Glass Fabric PCB. Microsoft Windows 10 64-bit / 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bit. 1PCS ASRock X99 Extreme4 Motherboard ATX.