The MIL-DTL-38999 Series II connectors are engineered for rugged environments, boasting up to 128 contacts within a durable insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable connections. Crafted from aluminum with plating options including cadmium and nickel, they ensure robust performance. With RoHS-certified finishes available, these connectors are a dependable choice for military, aerospace, and industrial applications.