MIL-DTL-38999 Series II connectors feature up to 128 contacts within an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Offering various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatility in installation. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. Constructed with aluminum shells and plated with options including electroless nickel and cadmium finishes, they meet stringent military specifications. Suitable for demanding applications, these connectors provide secure and durable electrical connections in critical environments.