Notes:The package contains 1PCS motherboard + 1PCS processor + 4PCS memoryMotherboard is MACHINIST E5 MR9SProcessor is Intel Xeon E5 2699 V3The memory is 64GB=4PCS*16GB DDR4 2666MHz RAMIf this kit does not meet your requirements, you can contact customer service to match you with the kit you need, thank youPerformance parametersIntel Xeon E5-2699 v3 parametersSlot Type: LGA 2011-3Number of cores: Eighteen coresNumber of threads: Thirty-six threadsCPU frequency: 2.3GHzThermal Design Power (TDP): 145WNote: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 contain a CMOS battery. (embargo regulations)Make sure you buy the correct motherboard to be compatible with your other hardware.Feature:Support sata m.2 and m.2 nvmeSupports DDR4 ECC server memory and DDR4 desktop memoryHigh compatibility, better experience.All solid-state capacitors, fine workmanship, professional and stable. Specification:Chipset:C226Model: Mechanic E5-MR9SCPU socket: LGA 2011-3Structure: ATXCPU Support: Intel series with LGA Socket 2011-3 (supports Intel Core i7 or Xeon E5 v3 and v4 series)Support high-speed DDR4 quad-channel memory slot: 8*ddr4Maximum memory support: 8*32G DDR42133/2400/2666/3000/3200/3600MHzThe maximum memory capacity is 256g (the server memory cannot be compatible with the desktop memory, and there is a compatibility problem.)Integrated Graphics: NoSound card: 7.1 channel alc887 chipMotherboard size: 244CM*303CMMotherboard weight (including packaging): about 1.3kgNotes:(1) Socket backplane color may vary from lot to lot, but will not affect the use of the product. Products are continuously optimized and updated.(2) Please allow 1-3mm difference due to manual measurement.(3) Due to different screens and different lighting, the pictures may not show the actual color of the product. Thanks for your understanding.(4) This floor plan requires a powerful power supply. Make sure your power supply is sufficient for this scenario. (minimum 500w type power supply)(5) The battery in the motherboard photo is not included, it will be removed before shipping due to logistics requirements prohibiting its use.For customs duty problems, please make sure you can solve the customs clearance problems by yourself, if you cannot solve it, we do not advise you to buy goods from our store. We are not responsible for customs duties. Thank you for your kind understanding.