24Port Gigabit Smart Managed Industrial POE Switch * 24 x Gigabit PoE RJ45 ports,4 x Gigabit SFP fiber optical ports * Support 802.1Q VLAN * Support 802.3bt Hi-PoE, Max. 90W for one port * Support STP/RSTP/ERPS Loop prevention, storm control * Support cable detection to locate failure * Support SNMP, QoS, DHCP snooping * 6 kV Surge Protection * Wider Temperature (-40 °C to 75 °C) Design * Up to 300 m Long-range Transmission