The NSGate NIS-3500-3426PGE is a Gigabit 20-port industrial PoE switch with 16 PoE ports and Enhanced G.8032 Ring Technical Data: - IEEE 802.3/802.3u/802.3ab/802.3x, 8K MAC, 4Mb buffer - IEEE 802.3at/802.3af (PD Alive Check), 16 ports 20-30W - IGMP snooping; STP, RSTP, MSTP, ERPS, BPDU Guard; LACP - QoS, CoS, DSCP, VLAN (MAC/Protocol-based, PVE, 802.1Q tag, QinQ) - Telnet, CLI, Web, SNMP, RADIUS, TACACS+, ACL, DHCP option 82 - 2 Digital Input (DI), 2 Digital Output (DO) - Redundant Power Input 48-56VDC; Total PoE Budget: 320W - Housing: IP30 Protection, DIN Rail or Wall mounting - Operating Temp.: -40 ~ +75°C; Dimensions: 152x107x84mm NIS-3500-3426PGE: 16 10/100/1000T PoE 30W + 2 SFP/1G + 2 TP/1G