SIIGs DP 4-Port Gigabit Ethernet PCIe easily adds 4 Gigabit 10/100/1000 Mb/s Ethernet networking ports to your PC or server. This Ethernet PCIe adapter card delivers high performance data transfer rates of up to 1000 Mb/s over your Ethernet network to allow for high speed, large files transferring. It supports crossover detection and auto-correction functions and is equipped with LEDs to monitor your networking activities. This dual-profile, high quality Ethernet adapter card can enhance your networking performance from a workstation with 10/100 Ethernet port or without networking capabilities. - See more at: http://www.siig.com/dp-4-port-gigabit-ethernet-pcie.htmlsthash.0sJAZFED.dpuf