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Start Bit - MODULE SFP
10/100/1000Mbps Base Ethernet Converter Fiber Optic to Network Media Converter RJ45 Port SM, 40km, LC,1310nm Electronics avenueeventgroup.com
Start Bit - Gigabit (SFP)
Amazon.com: A Pair of Gigabit Ethernet Fiber Optical Media Converter Bidi 10/100/1000Base-Tx Optic SM 20km to RJ45 Port with 1.25Gbs SFP Transceivers : Electronics
IR test equipment on your pocket | Ubiquiti Community
Amazon.com: TP-LINK Gigabit SFP module, 1000Base-SX Multi-mode Fiber Mini GBIC Module, Plug and Play, LC/UPC interface, Up to 550/220m distance (TL-SM311LM) : Electronics
Amazon.com: Fast Ethernet CAT5 Converter Singlemode Dual Fiber Optic to RJ45 Transceiver SC 60km : Electronics