MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front and rear wall mount options, along with jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors come in high-strength aluminum shells with plating options such as cadmium, nickel, and anodized finishes. RoHS certified variants are also available, ensuring compliance with environmental regulations. Ideal for military and industrial applications, these connectors provide reliable connectivity with their bayonet coupling and removable crimp contacts, offering durability with 500 mating cycles.