Notes:The package contains 1PCS motherboard + 1PCS processor + 2PCS memoryMotherboard is MACHINIST E5 MR9A PROProcessor is Intel Xeon E5 2620 V4The memory is 2pcs*16GB DDR4 2133MHz ECC RAMIntel Xeon E5-2620 v4 Parameter DescriptionNumber of cores Eight coresNumber of threads 16 threadsCPU frequency 2.1 GHzDynamic acceleration frequency 3GHz20 MB L3 cacheBus specifications QPI 8GT/sThermal design power consumption (TDP) 85WNote: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 shipmentFeatures:Support SATA M.2 and NVME M.2, 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 heat100% Brand New High Quality!High compatibility brings a higher experience.All solid-state capacitors, fine workmanship, professional and stable.Specification: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.