GOST. M12 to Ethernet Network Cable Assemblies. A comprehensive range of shielded M12 Ethernet connector cable assemblies, featuring M12 to RJ45 connectors in halogen free shielded light blue cable, and M12 to open ended cables all in varying lengths to suit application.. Rated at 1A 50V Operating temperature range -20 to +80 °C IP67 rating for M12 IP20 rating for RJ45