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 mounting options including front and rear wall mount, as well as jam nut receptacles, these connectors offer RFI grounding plugs for enhanced performance. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity in aerospace and military applications. Constructed with high-strength aluminum shells and offering multiple plating options, such as cadmium and nickel, these connectors meet stringent environmental standards. RoHS compliant finishes are also available, catering to diverse industrial needs.