Supports 8*10/100Tx IEEE 802.3at/af Compliant with 30W/Port, 2*10/100/1000Tx RJ45 & 2*100/1000 SFP SlotsNetwork Redundancy Support: RSTP/MSTP, and G.8032 ERPS (Recovery Time <50ms)Configuration: Web Console, Telnet, CLI CommandSupports IGMP v1/v2, up to 256 GroupsSupports QoS (IEEE802.1p) and CoS/ToSSupports IEEE802.1Q VLAN, SNMP v1/v2c/v3PoE Ping Alarm Function for PoE Ports Power RecycleSystem Warning Setting for Automatic Warning through E-MailRedundant Power Input Design: 12~55VDC (with Voltage Booster built-in)Housing: Metal IP 30 Rated; DIN-Rail and Wall Mount SupportStandard Operating Temperature: -10~70C5-Year Warranty