4-Port IEEE 802.3at compliant PoE+ Function (30W/Port)4-Port IEEE 802.3bt compliant 4PPoEP (60W/Port)Supports Auto MDI/MDI-X FunctionStore-and-Forward Switching Architecture2K MAC Address TableNetwork Broadcast Storm ProtectionSurge Protection: 2, 000 VDC supportESD Protection: 6, 000 VDC supportRedundant Power Input Design – 12~36VDCBuilt-in 1 relay output for Port Break AlarmIP30 Rugged Aluminum Case DesignDIN-Rail and Wall Mount supportOperating Temperature range - STD: -40° to 75°C5-Year Warranty