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China Managed Industrial Ethernet Switch - 4 Port Gigabit Ethernet Switch and 2 SFP Ports 1000M fiber optic transceiver switch – HDV Manufacturer and Supplier | HDV
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Amazon.com: TRENDnet 4-Port Gigabit Switch with SFP Slot, TEG-S51SFP, 10 Gbps Switching Capacity, Fanless, 802.1p QoS, Rear Facing Ports, Metal Housing, Network Ethernet Switch, Lifetime Protection, Black : Electronics
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