The MIL-DTL-38999 Series II connectors offer rugged, high-performance 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 aluminum shells with multiple plating choices, including RoHS-certified finishes, they ensure reliable conductivity in temperatures ranging from -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, these connectors are ideal for military and industrial applications requiring durability and performance.