MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts within an insert. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Offering various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, with M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and available in different plating options, including cadmium-free finishes, they ensure durability and reliability. Suitable for military and industrial use, these connectors are designed to withstand environmental challenges with their robust design and high-performance capabilities.