Industrial 1 SFP & 4 Port Gigabit Ethernet Switch – Brainboxes SW-104, Brainboxes SW-104 Industrial Embeddable 4 Port Ethernet Switch has Industrial temperature range of -40°C to +80°C (-40°F to 176°F) and dual input redundant power supply with wide voltage range means it can be powered from USB or on the 24V factory floor. The power terminal is removable with numbered pins for easy wiring and power consumption is optimised based on the status of the link device. There is no software required which makes it ideal for embedded applications.Galvanically Isolated Ethernet Ports capable of 10/100 Mbps. Brainboxes SW-104 Industrial Embeddable 4 Port Ethernet Switch