5-Port Industrial PoE+ Unmanaged Ethernet Switch w/4x10/100TX (30W/Port) + 1*100Fx Multi-mode 2Km, 48~55VDC Ethernet Speed_10 Gigabit It supports the power redundancy

It supports the power redundancy feature using a dual power input design with reverse polarity protection

The STM-501C

There are Multi-Mode and Single-Mode models to support applications with a variety of fiber distances and types

The unit is designed with 8 gigabit Ethernet ports and 4 dual rate (100/1000) SFP slots for fiber connections

5-Port Industrial PoE+ Unmanaged Ethernet Switch w/4x10/100TX (30W/Port) + 1*100Fx Multi-mode 2Km, 48~55VDC Ethernet Speed_10 Gigabit It supports the power redundancyAntaira Technologies LNP 0501 series is an industrial PoE+ unmanaged Ethernet switch featuring 4*10 100Tx Fast Ethernet RJ45 ports and 1*100Fx fiber port with SC or ST type connectors and an option for multi mode (2Km) or single mode (30Km). Each Ethernet port supports an IEEE 802. 3at high power PoE+ output up to 30W per port, making it ideal for applications that demand a PoE power source. The LNP 0501 series is IP30 rated and DIN rail mountable.