StarTech-com-ExpressCard-Network-Adaptors-StarTech-com-EC2000S-P-This-EC2000S-2-port-Gigabit-ExpressCard-Ethernet-Adaptor-from-StarTech-com-adds-2-10-100-1000Mbps-Ethernet-ports-to-an-ExpressCard-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-P-P-Supporting-features-such-as-NDIS5-checksum-and-large-send-offload-for-lower-CPU-utilization