NotesThe package includes 1PCS motherboard, 1PCS processor and 4PCS memory.The motherboard is MACHINIST E5-MR9A-PROThe processor is Intel Xeon E5-2680 V4The memory is 4pcs*16GB DDR4 2133MHz ECC RAMPerformance parametersIntel Xeon E5-2680 v4 parametersSlot Type: LGA 2011-3Number of cores: Fourteen coresNumber of threads: twenty-eight threadsCPU frequency: 2.4GHzDynamic acceleration frequency: 3.3GHzL3 cache: 35MBBus Specification: QPI 9.6GT/sThermal Design Power (TDP): 120WNote:1 : Second-hand CPU in good condition with 1-year warranty2: There may be some small physical scratches on the surface of the CPU, which is normal3: All CPUs are strictly tested before shipmentThe motherboard does not have a CMOS battery. (embargo regulations)Make sure you buy the correct motherboard to be compatible with your other hardware.feature:Supports SATA M.2 and M.2 NVME ,WIFI M.2Supports DDR4 ECC server memory and DDR4 desktop memory8-layer PCB backplane, 8-phase power supply, VRM does not need a radiator, overclocking will not heatHigh compatibility brings a higher experience.All solid-state capacitors, fine workmanship, professional and stable.The motherboard will be fully tested before delivery, and it will be shipped out after confirming that there is no problem, please rest assured to buySpecification:Brand: MechanicCPU socket: LGA 2011-3Motherboard model: E5 MR9A PROStructure: ATXChipset: Intel Q87Memory slot: 4*DDR4 (four memory channels)Maximum memory supported: 4*32GB DDR4Supported memory types: The memory types support DDR4 desktop and server memory. (Please use Samsung, Kingston, SanDisk, Micron, Hynix and other international brands, other brands are not compatible)Ethernet port: 10/100/1000Mbps/sVideo output port: requires graphics card supportInterface: 1*RJ45/1*PS2/4*SATA2.0/2 *SATA3.0/6*USB2.0/2*USB3.0/2*PCI-E x16/1*PCI-E x1/1* PCI-E x4/1*NVME/NGFF M.2 interface;Motherboard size: 216MM*283MMMotherboard weight (including packaging): about 1.2kg.notes:1: The color of the slot bottom plate may vary from batch to batch, but it will not affect the use of the product. Products are continuously optimized and upgraded.2: Please allow 1-3mm difference due to manual measurement.3: Due to different monitors and different light, the pictures may not show the actual color of the goods. Thanks for your understanding.4: This floor plan requires a strong power supply. Make sure your power supply is sufficient for this scenario. (at least 500w brand power supply)5: The battery in the photo of the motherboard will be taken out before shipping, because China Post and Customs prohibit the use of batteries.For tax issues, please make sure you can solve the customs clearance problem by yourself, if you can't solve it, we do not recommend you to buy goods in our store. We are not responsible for customs duties. Thanks for your understanding.