Amazon.com: ciciglow SFP Fiber Media Converter, Ethernet Fiber Switch Plug and Play 4 Optical Port Network Ethernet Switch 4 Electrical Port 10/100/1000M RJ45 Port (US Plug) : Electronics
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Amazon.com: 4-Port Gigabit Ethernet Fiber Switch, with Two SFP Slots (1000M), Without Transceiver : Electronics
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Amazon.com: ciciglow SFP Fiber Switch, Ethernet Optical Switch with LED Indicator, Lossless Transmission, 4 SFP Ports 4 RJ45 Ports, 120km Extension, 100Mbps for SFP, 10/100Mbps for RJ45 : Electronics