The FE-FX port adapter provides a 100-Mbps, 100BaseT Fast Ethernet interface. Each Fast Ethernet port on the FE-FX port adapter has a simplex connector (SC)-type fiber-optic connector for 100BaseFX, and an MII connector that permits connection through external transceivers to multimode fiber for 100BaseFX, or to Category 3, 4, and 5 UTP or STP for 100BaseT4 physical media.