Supports 4-Port 10/100/1000Tx IEEE 802.3at PoE+ Compliant with 30W per port, 1-Port 10/100/1000Tx + 2-Port 100/1000 SFPSupports Auto MDI/MDI-X FunctionStore-and-Forward Switching Architecture14Gbps Back-Plane (Switching Fabric)8K MAC Address Table9.6Kbytes Jumbo Frame SupportSurge Protection: 2, 000 VDC SupportESD Protection: 6, 000 VDC SupportUL Class I, Division 2 CertifiedRedundant Power Input Design: 48~55VDCBuilt-in 1 Relay Output for Power Failure DetectionIP30 Rugged Aluminum Case DesignDIN-Rail and Wall Mount SupportOperating Temperature Range - STD: -10° to 70° C5-Year Warranty