MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts. These connectors feature various mounting options such as front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications. Constructed with aluminum shells and offering plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure superior performance and durability. Meeting MIL-DTL-38999 II military specifications, they are ideal for aerospace, defense, and other mission-critical industries.