The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With options for front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in connectivity solutions. These connectors are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Constructed with high-strength aluminum shells, they provide durability. Available in various plating options, including cadmium-free finishes, such as electroless nickel and black anodized aluminum, these connectors offer flexibility for different applications. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial use, the MIL-DTL-38999 Series I connectors meet stringent standards for quality and performance.