MOXA Entry-level managed Ethernet switch EDS-405A-SS-SC :

Entry-level managed Ethernet switch with 3 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, 0 to 60°C operating temperature.

The EDS-405A Series is designed especially for industrial applications. The switches support a variety of useful management functions, such as Turbo Ring, Turbo Chain, ring coupling, IGMP snooping, IEEE 802.1Q VLAN, port-based VLAN, QoS, RMON, bandwidth management, port mirroring, and warning by email or relay. The ready-to-use Turbo Ring can be set up easily using the web-based management interface, or with the DIP switches located on the top panel of the EDS-405A switches.