The MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options such as front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable performance. With a wide range of plating options including cadmium-free finishes, these connectors ensure durability and longevity. Operating between -65°C and 200°C, they are ideal for military and industrial applications requiring high-performance connectivity in challenging conditions.