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