MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts with environmental sealing. Operating between -65 °C and 200 °C, they offer durability in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatile installation. With options for straight, RFI grounding, and standard plugs, they cater to different connectivity needs. The connectors come in aluminum shells with plating choices including cadmium-free finishes, meeting RoHS standards. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Ideal for military and industrial applications, these connectors provide reliable performance with their gold-plated, removable crimp contacts and conductive properties.