MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall, jam nut, and box mounts. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connections. With a durable aluminum shell and multiple plating options, including RoHS compliant finishes, they ensure long-lasting performance. Ideal for military and industrial applications, these connectors guarantee secure and efficient electrical connections in extreme conditions.