Intel dual CPU sockets: This c612 server chip motherboard is designed with dual CPU sockets, which improves performance by at least 50%, and can support Intel Core i7 5th/6th generation processors and Xeon E5 V3/V4 series processors. (Note: If only one CPU is installed, please install it in the right slot, and the graphics card needs to be installed in the bottom two slots.). DDR4 4-channel memory slot: The memory slot of the LGA 2011-3 motherboard is designed with four channels, which can install 8 memory. It supports effective frequencies of 2133/2400, and the maximum capacity is 256GB. If the amount of installed memory is less than 8, please fill the slots away from the CPU side first, that is, the ""4"" and ""8"" slots (just count from left to right). If you need to use four sticks of memory, please use slots ""1"", ""4"", ""5"", and ""8"" (counting from left to right). PCIe 3.0 protocol standard: Equipped with 4 PCIe 3.0 X16 graphics card slots (with steel case). The transfer rate can reach 15.754 GB/s using one graphics card, and the performance can be improved by at least 50% by using two graphics cards. Equipped with dual M.2 hard disk slots, it can achieve fast reading even if multiple programs are running. ▲Important Note: This D8 motherboard with red sockets has twice the memory performance of the black socket version, but its compatibility is reduced. If you are using the Xeon E5 V4 CPU, it is not compatible with ordinary desktop memory and needs to use ECC memory. Please be sure to pay attention to this when buying this motherboard. Stable power supply: use 24+8+8pin standard power supply interface (need to use a dedicated power supply for dual server motherboards), 12 (CPU) + 4 (memory) + 1 (X99 chip) phase power supply. Precise modularization provides good heat dissipation and makes the program run more stably. Strong expandability: The X99 motherboard is equipped with multiple expansion interfaces to ensure that the motherboard has more room for improvement. These include 4*USB 3.0 ports, 4*USB 2.0 ports, 10*SATA 3.0 ports, 4*3pin sys fan, 2*4pin CPU fan. Besides, dual network ports allow your computer to do more things. Tips: The package includes: 2*CPU fan bracket, 2*SATA cable, 1*I/O baffle, 1*motherboard. IMPORTANT: The package does not contain a user manual, please download the manual file from the bottom of the product description page or we can help you get it. The CR2032 battery on the motherboard has been removed. It is not included in the package, please purchase it yourself. Note: If you need the motherboard to enter the BIOS, please press the ""Del"" key continuously after pressing the startup key. Please do not wait until the startup LOGO screen appears on the computer screen before operating, because it is already too late. If you don't know where to download the driver, it is recommended to use the Win 10 system
