BergStak satisfies customers who want a product range for present and future applications. Customers also require product features that enable low manufacturing costs with either automated or hand assembly. Many customers are seeking a standard mating interface that is scalable to varying requirements. This design flexibility stresses design limits and challenges the easy mating characteristics that are required by all customers. Proof of secure mating and verification of reliability must be available from connector suppliers. Connectors must also mate with competitive designs. These are all pre-requisites for connector selection.