MSI H55M-E33 Motherboard Supports Intel i3 / i5 / i7 based processors in LGA1156 package Supports four unbuffered DIMM of 1.5 Volt DDR3 1066/1333/1600*/2000*/2133* (OC) SDRAM, 16GB Max 1 PCI Express gen2 x16 slot Supports one PCI Express LAN 10/100/1000 Fast Ethernet by Realtek 8111DL The mainboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically.