The MIL-DTL-38999 Series II connectors are designed for harsh 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 a wide range of conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The connectors come in aluminum shells with options for RoHS certified finishes, ensuring durability and compliance with environmental standards. With 52 insert arrangements and M39029 rear release crimp contacts, they offer flexibility for diverse connectivity needs. Trusted for military use, these connectors are ideal for applications that demand ruggedness and reliability.