Supports 12*10/100/1000Tx IEEE 802.3at PoE+ Compliant (PSE: 30W/Port), + 4*100/1000 SFP SlotsStore-and-Forward Switching Architecture8K MAC Address TableJumbo Frame Support: 12.2KbytesSurge Protection: 2, 000 VDC SupportESD Protection: 6, 000 VDC SupportRedundant Power Input Design: 48~55VDCBuilt-in 1 Relay Output for Power Failure WarningIP30 Rugged Metal Case DesignDIN-Rail and Wall Mount SupportOperating Temperature Range - EOT: -40° to 75°C5-Year Warranty