The EC2000S 2-port Gigabit Express Card Ethernet Adapter adds 2 10/100/1000 Mbps Ethernet ports to an Express Card-enabled laptop, or small form factor system, enabling you to connect to two separate physical networks simultaneously with dedicated bandwidth, or providing full dedicated bandwidth to virtual machines. Supporting features such as NDIS5 checksum & large send offload for lower CPU utilization, Wake-on-LAN (WOL) & Remote Wake-up power management, jumbo frames & VLAN tagging, this Express Card Ethernet Adapter is ready to handle a wide variety of scenarios. With a 34mm Express Card form factor, this compact & portable Gigabit Ethernet Adapter will fit in any Express Card-enabled system.