The MIL-DTL-38999 Series II connectors feature up to 128 contacts enclosed in a rugged insert, offering robust environmental sealing for reliable performance in harsh conditions. With an extensive operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatile connectivity solutions. The connectors come in aluminum shells with multiple plating options, ensuring durability and corrosion resistance. Compliant with MIL-DTL-38999 II military specifications, they are designed to meet stringent performance standards. Each connector is meticulously engineered with attention to detail, utilizing M39029 rear release crimp contacts for secure connections. The range includes straight, RFI grounding, and standard plugs with a 90-degree cable clamp, offering flexibility in installation. With 52 insert arrangements and 9 shell sizes, these connectors cater to diverse connectivity requirements. The RoHS-compliant cadmium-free finishes further enhance their environmental credentials, making them a reliable choice for demanding applications.