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 styles such as front wall, rear wall, and jam nut receptacles, they offer RFI grounding plugs for added versatility. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable performance. Constructed with high-strength aluminum shells and offering a choice of plating options including cadmium-free finishes, they meet stringent military specifications for durability. Suitable for applications requiring secure electrical connections in challenging conditions, these connectors are RoHS compliant, making them environmentally friendly options for various industries.