LEMO Aluminum Corrosion Resistant M Series Connectors feature a NiCorAl™ plating on the same aluminum alloy shells as the standard “X” code models. The NiCorAl™ plating, designated “I” code, is matte gray in color but offers increased salt spray corrosion resistance up to 500 hours. These connectors are also electrically conductive (<1.5 μΩ shell-to-shell resistance), so shielding is preserved.