MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With a wide operating temperature range from -65°C to 200°C, these connectors provide reliable performance in harsh conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with plating options including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Ideal for military and aerospace applications, these connectors meet stringent MIL-DTL-38999 II specifications.