MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert with front wall mount, rear wall mount, and jam nut receptacles. Operating between -65°C and 200°C, these connectors are environmentally sealed and offer reliable performance. Utilizing M39029 rear release crimp contacts in various sizes, they ensure secure connections. With options for different finishes including cadmium-free, these connectors are versatile and meet RoHS compliance. Suitable for military and industrial applications, they provide reliable connectivity in demanding conditions.