20-Port Managed Desktop Gigabit Switch with 16-Port PoE |Layer 2 network management PoE switch |Supports web, and network management software based on SNMP |Supports IEEE802.3af, IEEE802.3at |Network redundancy: STP/RSTP |Port 1 and port 2 support IEEE802.3bt, and are compatible with Hi-PoE |Supports PoE watchdog |Supports 250 m long-distance transmission mode
