RUGGEDCOM RSG920P is a fully managed Ethernet switch with 128-bit Encryption and 20 non-blocking Gigabit Ethernet ports; support for 4 SFP modules and 4 PoE ports; -40 °C to +85 °C operating temperature (fanless) HI (100-300VDC or 88-264VAC) . No mounting kit . None SFP, 1000LX, Singlemode LC, 1310 nm, 25 KM SFP, 1000LX, Singlemode LC, 1310 nm, 25 KM No SFP Transceiver No SFP Transceiver Standard