MS27656E21B16S is a high-performance MIL-DTL-38999 Series I connector, designed for demanding military and aerospace applications. Featuring a durable aluminum shell with Electroless Nickel and Cadmium Olive Drab plating, this back panel wall mounting receptacle ensures reliable performance in harsh environments. With 16 removable crimp contacts, each plated with gold for enhanced conductivity, this connector offers secure and efficient signal transmission. Its bayonet mating type and N keyway polarization provide easy and accurate connections, while its environment-resistant design, rated for operating temperatures between -65°C and 175°C, guarantees dependable functionality in extreme conditions. Trusted for its high reliability and longevity, this connector is ideal for use in critical systems that require uncompromising performance.