MIL-DTL-38999 Series II connectors are designed for harsh environments, offering reliable performance with up to 128 contacts in an insert. These environmentally sealed connectors feature a wide operating temperature range from -65°C to 200°C. Available in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, they meet stringent military specifications for durability. Constructed with aluminum shells and gold-plated contacts, they ensure optimal conductivity and longevity. With RoHS compliant options, including cadmium-free finishes, these connectors are ideal for aerospace, defense, and industrial applications requiring rugged and secure electrical connections.