Mellanox MCX311A ConnectX-3 SFP + fiber patch. I did not manage to squeeze out more than 5Gbit / s. But for a Network card + 2 SFPs + optical patch = about 4'500 = this is several times cheaper than buying in conventional stores.
TRENDnet TC-TP1 Network Signal Testing Probe with Adjustable Volume, Speaker and Compatibility for TC-NT2
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📡 CM19A R.F. PC Transceiver for X10 Devices
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🔌 CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
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HB-UMLS Sabrent USB 2.0 Hub with 4 Ports and LED Power Switches for Each Port
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🌐 StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
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