The 3Com FAB 02-0172-009 Rev A 10/100BASE-TX Fast Etherlink XL PCI card is a high-speed LAN card designed for computers. With a maximum data rate of 100 Mbps, it provides fast and reliable network connectivity. This PCI card is compatible with PCI slots and offers a single port for Ethernet connections. Known for its durability and performance, the 3Com Fast Etherlink XL is a solid choice for enhancing networking capabilities in computers.