Features: and high quality REG ECC server memory is supported. for M.2 NVME SSD are supported. Memory type: DDR3 x 2 server dimms. All solid state capacitor, fine workmanship, professional stability. High compatibility leads to better experience. Specifications: Item name: X99H Computer Motherboard Material: PCB+Metal Color: Black Chipset: H81/B85 CPU slot type: LGA2011-V3 Slot: 2 x DDR3 dual channel Module memory: DDR3 1066/1333/1600MHz Sound Card: Onboard 5.1 channel Network card: integrated 100M/Gigabit network card PCIE slot: 1 x PCIEx16, 1 x PCIEx1 Hard disk ports: 1 x for M.2 port, NVME and NGFF, 4 Sata ports, USB port: 6 high-speed USB2.0, 6 USB3.0 ports, Extension ports?? 1 x P-S/2 interface 1 x COM port Supported CPU models: E5 2678V3 2696V3 2629V3 2649V3 2668V3 2676V3 2666V3 CPUs Size: approx. 21.5 x 18.7cm/8.46x7.36in Package Includes: 1 x X99H Computer Motherboard note: There might be little error of size for manual measurement. The colors deviation might differ due to different monitor settings, please kindly understand.