12 port gigabit | PoE Budget 120W | 2x PoE+ | 2x SFP/PoE bt In | Fanless | DIN | IP40 | Industrial 12*10/100/1000M PoE ports, 4*1000M SFP ports, 1~16 port support 30W 2*48~57VDC Support L3 management, such as OSPF, RIP, QoS, VLAN, MSTP, Multi-broadcast, ports management and PoE management 6KV surge protection, 8KV contact /15KV air ESD protection.