4 port gigabit ethernet pcie network interface card realtek 8111H PCI-E Express to 10/100/1000 Mbps Network card Adapter 10/100/1000Mbps data rate auto negotiation operation Features full duplex mode that doubles the network connections speed Fully compliant with IEEE802. 3, 802. 3U and 802. 3ab Supports WOL (wake-on-lan) function