Cisco cat

Eaton Series Cisco GLC-T Compatible 1000Base-TX Copper RJ45 SFP Mini Transceiver Gigabit Ethernet Cat5e Cat6

Tripp Lite Eaton Series Cisco-Compatible GLC-TE SFP Transceiver - 10/100/1000Base-TX Copper RJ45 Cat6 328 ft. (100 m)