The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed. With an operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The connectors come in aluminum shells with plating options including cadmium-free finishes, ensuring both durability and environmental compliance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Ideal for military applications, these connectors provide EMI shielding and are RoHS compliant, making them suitable for a wide range of industries.