Positronic Industries’ A-series backshell for D-subminiature connectors meets electromagnetic interference/RF interference protection requirements for cable connectors. They are made from lightweight aluminum with a zinc content of less than 1%. Wall thickness provides robustness while maintaining light weight. Features include a large aperture and strain relief appropriate for high-density wire bundles using twisted, shielded pairs. Wide form factor allows the user to meet bend radius requirements. Up to six grounding points are provided and are sized and shaped for use with 0.250-in-diameter ring terminals. Jackscrews are offered as well as quick disconnect locking systems. Lightweight units provide options for space flight applications.