The ST2000SPEXI PCI Express dual port gigabit network card lets add two gigabit Ethernet ports to a desktop computer through a single, four-lane (x4 or higher)PCI Express slot. Each port is fully compatible with IEEE 802.3/u/ab standards, for 10/100/1000 Mbps auto-negotiation. This 2-port GbE network card is based on the high-performance Intel I350 chipset, which offers several advanced driver options including IEEE 802.3ad link aggregation/teaming support, enabling to add additional bandwidth to system. Support for Jumbo Frames, full-duplex operation and 802.1q VLAN tagging also aid in creating an efficient network configuration.