Description: brand new and high quality Feature: Dual USB interface design, fast and high speed connection with the RTL8111F gigabit net-work card. Four channels memory, can support ordinary and ECC server memory. Integrated chip sound card/net-work card. One 8-pin power supply slot and one 24 pin power connector, 8-phase Power supply mode. Good heat dissipation. Easy and simple to install and remove. Specifications: Item Type: Computer Mainboard Main chipset: for In-tel B75 CPU platform: for In-tel CPU slot: LGA 2011 Memory Type: DDR3 1866/1600/1333MHz Memory Slot: 4DDR3 DIMM Expansion Slots: PCI-E slot: 3xPCI-E X16 graphics card slot, PCI-E slot: 1xPCI-E X2, 4x USB2.0 pin (2 sets), 1x COM interface, 2x SATA3.0 interface, 4x SATA2.0 interface, 1xNVME for M.2 interface I/O Interface: PS/2 interface: PS/2 keyboard and mouse interface, 1xRJ45 net-work interface (gigabit net-work card), 2xUSB 3.0 interface, 6xUSB 2.0 interface, audio interface Net-work card chip: RTL8111F Audio chip: 6-channel sound effect chip Material: plastic+metal Size: 28.3x22cm/11.14x8.66in Color: Black Quantity: 1 Pc Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Attention: Due to different production batches, there may be some differences in the appearance of different batches of mainboards, but we ensure that the performance and your use will not be affected. Package Includes: 1 x Computer Mainboard