The PA-2FE-TX provides two 10/100-Mbps, 10/100BaseT Fast Ethernet/Inter-Switch Link (ISL) interfaces and supports both full-duplex and half-duplex operation. Each Fast Ethernet port on the PA-2FE-TX has an RJ-45 connector to attach to Category 5 unshielded twisted-pair (UTP) cable for 100BaseTX.