The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in harsh conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in multiple sizes. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. With a straight plug design and EMI/RFI shielding, they provide secure and interference-free connections. Meeting MIL-DTL-38999 II specifications, these connectors are ideal for military and industrial applications requiring high-performance connectivity.