The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring various mounting options like front wall, rear wall, and jam nut receptacles, they ensure secure installations. These connectors, in 9 shell sizes and 52 insert arrangements, use M39029 rear release crimp contacts for reliable connections. With a wide operating temperature range from -65 °C to 200 °C, they are suitable for demanding applications. Crafted with high-strength aluminum shells and available in different plating options, including RoHS compliant finishes, these connectors guarantee durability and performance. Suitable for military and industrial use, they provide a dependable solution for electrical connectivity in challenging conditions.