MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, 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 utilize M39029 rear release crimp contacts for secure connections. With a rugged aluminum shell and a choice of plating options including cadmium-free finishes, these connectors ensure reliable operation in extreme conditions. Meeting MIL-DTL-38999 II military specifications, they guarantee durability with a maximum operating temperature of 200°C and a minimum of -65°C. Perfect for demanding applications, these connectors provide EMI/RFI shielding and are ideal for use in aerospace, defense, and industrial settings.