The MIL-DTL-38999 Series II connectors are built for rugged environments, featuring up to 128 contacts in an insert. With an impressive operating temperature range of -65°C to 200°C, these connectors are designed for extreme 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 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, they ensure durability and compliance with RoHS standards. Perfect for military and industrial applications, these connectors guarantee reliable performance in harsh environments.