Cable Matters USB 3.1 to 4-Port Gigabit Ethernet Switch (USB to Gigabit Ethernet Adapter) for Laptops and Switch Gaming Console: Network Switches: Amazon.com.au
4 Port Poe Switch
ROLINE Gigabit Ethernet Switch, Pocket, 4 Ports - SECOMP International AG
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4 Port In-Wall Gigabit PoE Extender with IEEE 802.3bt Uplink Power
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