MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, offering reliable performance in harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, and jam nut receptacles, they are designed for versatile applications. These connectors comply with military specification MIL-DTL-38999 I, boasting a high-strength aluminum shell with multiple plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. The RoHS compliant variants with cadmium-free finishes cater to environmental regulations. Perfect for demanding situations, these connectors guarantee durability with a mating life of 500 cycles and resistance to various elements, making them ideal for critical operations.