The MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they maintain reliable performance in temperatures ranging from -65°C to 200°C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatile installation. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering various plating options, including cadmium-free finishes, these connectors meet stringent quality standards. Suitable for military and industrial applications, they guarantee durability and longevity in challenging operating conditions.