Features We introduce the HUANANZHI X99-4MF motherboard, an excellent solution for the most advanced computing needs. With an Intel H81 Series chipset and Intel LGA2011-3 processor support, this motherboard delivers superior performance and reliability to build your system. With four DDR4 memory slots and support for dual channel DDR4 up to 128GB, it ensures efficient memory management. Equipped with SATA2.0 and SATA3.0 storage interface, it also offers PCI Express3.0x16 and PCI Express2.0x1 expansion slots for further updates. The presence of an M.2 NVME PCIEX4 3.0 and M.2 NGFF SATA 3.0 interface expands expansion options. It offers a high fidelity audio experience with Realtek High Fidelity Audio and a reliable network connectivity with the Realtek Gigabit Network Card. With a full interface on the back and front panel, support for various startup features and BIOS AMI UEFI, this motherboard is the ideal choice for demanding users. Specifications: Chipset: Intel H81 Series Chipset Socket CPU: Support Intel LGA2011-3 Platform Processors Memory Slot: 4 x DDR4 memory slot Memory Standard: Support Dual channels DDR4 2400/2133/1866MHz, Max support 128GB Storage interface: 2x SATA2.0 3Gbps interfaces, 1x SATA3.0 6Gbps interfaces Expansion slots: 1x PCI Express3.0x16, 1x PCI Express2.0x1 Expansion interface: 1x M.2 2280 NVME PCIEX4 3.0@1xM.2 NGFF SATA 3.0 Audio card: Realtek High Fidelity Audio network card: Realtek Gigabit Network Card Power interface: 24pin+8pin Pin for fans: 1x CPU FAN PIN, 1x SYS FAN PIN Power supply: 6-phase power supply PCB: 4-Layer PCB Size: 215*190MM ITX Back panel interface: 1x PS/2 Interface, 4x USB2.0, 2x USB3.0, 1x Network card interface Windows7, Windows10 BIOS: AMI UEFI BIOS