Notes:The package includes 1PCS motherboard + 1PCS processor + 2PCS memory.The motherboard is MACHINIST E5-MR9A-PRO-MAXThe processor is Intel Xeon E5 2640 V3The memory is memory 16GB=2PCS*8GB DDR4 2133MHz ECC RAMIntel Xeon E5-2640 v3 Performance specificationsNumber of cores: Eight coresNumber of threads: 16CPU main frequency: 2.6GHzL3 cache: 20MBBus specifications: QPI 8GT/sThermal design power consumption (TDP) : 90WNote: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:High compatibility brings a higher experience.All solid-state capacitors, fine workmanship, professional and stable.Specification:Model: MACHINISTProject Type: E5-MR9A-PRO-MAXChipset: Q87Motherboard Type: ATXGraphics card slot: 3*PCI-E X16CPU Support: For Intel series LGA 2011-3 socket (E5 V3 & V4)Memory slot: DDR4*4 four-channel compatible memory type: 2133/2400/2666/3000/3200 / 3600MHzMemory capacity: 128GBNetwork card type: GigabitSupported memory types: Desktop memory and server ECC>> Rear l/O:USB port: 2 USB 3.0; 6 USB 2.0;Audio: 1 0Mic-in. Line-out, Line-in);Ethernet: 1 Realtek Gigabit LAN;PS/2: 1 KB interface and 1 MS interface; >>Internal connectorUSB 2.0: 2 (one FUSB can transfer two USB 2.0 ports);USB 3.0: 2 (one FUSB can transfer two USB 3.0 ports);Serial port: 1 2x5Pin pin;FAN: 4 (1*CFAN+-3*SFAN);PCIe: 5 (3 PCIe x16; 1 PCIe x4; 1 PCIe x1);SATA ports: 6 (2 SATA2. 0. 4 SATA3.0);LAN: ATXPWR interface;1 standard 1x8PIN power socket; 1 standard 1x24PIN power socket;JAudio: 1 2x5Pin pin;Switch and restart: 2 independent buttons;JLPC: 1 2x5Pin pin;Diagnostic card: 1;M.2 interface: 2 (1*PCIB protocol+1*SATA protocol); >>Physical sizeSize: 215mmx303mm;Motherboard weight (including packaging): about 1.4kg.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: Manual measurement, please allow 1-3mm difference.3: Due to different monitors and different lighting, the pictures may not show the actual color of the item. Thanks for your understanding.4: This machine needs a strong power supply. Make sure you are strong enough to support this plan. (At least 500W brand power)5: The battery in the motherboard photo will be taken out before shipping because the battery is disabled in CN POST and Custom.For tax issues, if you can't solve it, please make sure you can solve your customs clearance problem, we do not recommend you to buy goods in this store. We are not responsible for customs duties. Thanks for your understanding.