NETGEAR FA510 Fast Ethernet CardBus Card: NETGEAR's 10/100 dual speed Ethernet line of PC cards makes it easy to accelerate your laptop PC to Fast Ethernet speeds. With Netgears PC cards your laptop PC becomes compatible with 10 Mbps Ethernet and your migration to 100 Mbps Fast Ethernet is built in with 10/100 dual speed technology. Take your choice of 16-bit (FA410CR) or 32-bit (FA510CR) preformance, and you're ready to share files and peripherals at 10Mbps or 100 Mbps. Simple plug and play installation makes shifting to 100Mbps a breeze.