MIL-DTL-38999 Series II connectors are designed for demanding environments, offering up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are reliable in extreme conditions. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offered in multiple plating options including cadmium-free finishes, these connectors ensure durability and compliance with RoHS regulations. Perfect for military and industrial use, the MIL-DTL-38999 Series II connectors guarantee high performance and longevity in harsh environments.