Features: brand new and high quality 8xPCIE 16X graphics card slots,67mm large spacing, fast heat dissipation. CPU: for Intel 4th generation dual-core notebook; Network interface: for Intel i211at supports 100M/1000M for Win10 miner OS system Equipped Sodimm DDR3 memory slot, 8x PCIE X16 power supply socket,significantly improve motherboard performance. High performance of computing,10% higher than same level motherboards. It can ensure quiet performance, low power consumption,less heat generation, energy saving and safe use. Specifications: Model: ETH HSW3 Memory: 1 x DDR3 Sodimm Slot Storage: 1x mSATA2.0 USB: 4x USB2.0 Expandable Port:8 xPCIE 16X HDMI-Compatible Material: PCB-Board Color: Black Size:approx 57.3x12.7cm/22.56x5in 8 PCi Slot Spacing: 67mm CPU: for Intel 4th generation dual-core notebook Network interface: for Intel i211at supports 100M/1000M System: Win10 miner oS Number of PCIE slots: 8xPCIE 16X (PCIE X1 Gen 2 Speed) Package Includes: 1 Set x ETH HSW3 Mining Motherboard note: There might be little error of size for manual measurement. The colors deviation might differ due to different monitor settings, please kindly understand.