K series connectors designed for outdoor  applications,using the push-pull self-locking.security system,the products are small,type of multi-core Core 2-21,high contact density;select multiple keys,The use of copperalloy shell processing,surface plating chrome or nickel,copper alloy pin jack used processing,the surface of gold-plated;Insulators with good insulation properties of engineering plastics injection molding;sheath using  soft plastics injection molding,cable can be well protected,All models in the series are waterproof,and protective levels reached IP68.