The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed 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 rear release crimp contacts and come in high-strength aluminum shells. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors cater to diverse mounting needs. With options for plating such as electroless nickel and RoHS certified finishes, they ensure reliable performance in demanding applications.