MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in 9 shell sizes and 52 insert arrangements, they utilize rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells, they come with various plating options, including cadmium and nickel finishes. RoHS certified versions are also available, making them a reliable choice for military and industrial use.