Supports 4*10/100/1000Tx Fast Ethernet Ports and 1*100/1000 SFP SlotNetwork 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/v2cSystem Warning Setting for Automatic Warning through E-MailRedundant Power Input Design – 12~48VDCHousing: Metal IP 30 Rated; DIN-Rail and Wall Mount SupportOperating Temperature - EOT: -40~75C5-Year Warranty