The TCV4270-1.8 from Prolink is an industrial grade, 4-port unmanaged Ethernet switch. This Layer 2 managed device features 4 10/100Mbps RJ45 ports, a DIN-rail mountable metal case, 24-48VDC power input, and Built-in ESD and transient voltage surge protection. It also includes Power Redundancy (PoE) and Auto- MDI/MDI-X support. The switch comes with a range of extended IP capabilities including IPV4/IPV6 addresses, IGMP/MLD Snooping, LACP, LLDP, and Flow Control. The TCV4270-1.8 is designed for industrial automation and is designed to operate over a wide temperature range of -40°C to +60°C.