MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a durable, environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including 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, ensuring secure and reliable connections. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors are suitable for a wide range of applications. With a wide operating temperature range of -65°C to 200°C, they provide dependable performance in extreme conditions. Perfect for military, aerospace, and industrial use, MIL-DTL-38999 Series II connectors guarantee exceptional durability and functionality.