I hooked up a couple of these converters to a 200 foot 50/125 multimode patch cord with LC connectors and they work right out of the box. The power supply is not a clunky wall wart. There is a short 110 volt pigtail for connecting to an extension cord. A handwritten note offering technical support was included.
π‘ CM19A R.F. PC Transceiver for X10 Devices
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9 Review
π Gigabit Ethernet Media Converter, Single Mode Dual SC Fiber, 1000Base-LX to 10/100/1000Base-Tx, up to 20km, 2-Pack
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UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
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π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
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5 Review