A Pair of Gigabit Ethernet Single-Mode SC Fiber Media Converter, Built-in Bidi SFP LX Fiber Module, 1310nm/1550nm, SMF, up to 20-KM, SC Fiber to 10/100/1000Base-TX (UTP/STP/Cat5e/Cat6 RJ45)
a Pair of Gigabit Ethernet Bidi Media Converter, SingleMode Single LC Fiber to Ethernet RJ45 Converter for 10/100/1000Base-Tx to 1000Base-LX, UL Certified, up to 20-km
Amazon.com: QSFPTEK Gigabit SFP Copper RJ45 Module 1000BASE-T Transceiver Compatible for Cisco GLC-T/GLC-TE/SFP-GE-T, Ubiquiti UF-RJ45-1G, Netgear, D-Link, Supermicro, Other Open Switches, up to 100m (2 Pack) : Electronics