MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for versatile connectivity. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, they ensure reliable performance in demanding conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer flexibility in installation. Constructed with aluminum shells and offering multiple plating options, they meet stringent military specifications for durability. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. RoHS compliant finishes are available, making them suitable for diverse applications requiring high reliability.