Etherwan Managed 24-port 100BASE-SFP and 4-port Gigabit SFP Combo Ethernet Switch

Etherwan 24 ports SFP + 4 ports Gigabit SFP Combo ethernet switch:Supports ?-ring and RSTP/MSTP/STP for Ethernet redundancy,IP Multicast Filtering through IGMP Snooping V1, V2 & V3,Supports port-based VLAN and IEEE802.1Q VLAN Tagging and GVRP,IEEE802.1p QoS with four priority queues,MAC-based trunking with automatic link fail-over,RS-232 console, Telnet, SNMP V1, V2c & V3, RMON, Web Browser, and TFTP Management,Supports Command Line Interface in RS-232 Console,Supports IEEE802.1x Security,Supports NTP,-10 C to 60 C