CISCO GLC-TE= - ACESSORIO 1000BASE-T SFP transceiver module for Category 5 copper wire - RJ-45 connector - up to 100 m (328 ft),The 1000BASE-T SFP operates on standard Category 5 unshielded twisted-pair copper cabling of link lengths up to 100 m (328 ft). Cisco 1000BASE-T SFP modules support 10/100/1000 auto negotiation and Auto MDI/MDIX