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LGH008A, Hardened Gigabit Edge Switch, 8-Port - Black Box
Transition Networks Unmanaged Hardened Gigabit Ethernet PoE+ Switch with Low Voltage Input - Walmart.com
Amazon.com: Hardened Industrial Gigabit Compact Ethernet Switch 10-Port 10/100/1000BASE-T RJ45 with auto-MDI/MDI-X Function 10/100Mbps Half/Full Duplex and 1000Mbps Full Duplex 12~48VDC Wide Range Power Input : Electronics