Dell Alienware X51 R3 Series Intel Chipset Z170 Socket LGA1151 Desktop Motherboard 26CD3 026CD3 CN-026CD3.
Chipset: Intel Z170
Socket: Intel LGA1151
Max Supported Memory: 32GB
Number of Memory Slots: 2
Memory Type: DDR4 SDRAM
Network/Communications: 10/100/1000Mbps Ethernet controller
Audio: Realtek ALC3861
Input/Output Ports: 1x RJ-45, 4x USB 3.0, 2x USB 2.0, 1x USB 3.1, 1x HDMI, 1x Line-out port, 1x One Rear L/R surround port, 1x One Center/Subwoofer LFE port, 1x One audio output/headphone port, 1x One audio input/microphone port
Expansion Slots: 1x PCI Express x16, 1x PCI Express x4
Form Factor: Micro-ATX
Type: Desktop Motherboard