The MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in an environmentally sealed insert. Operating between -65°C and 200°C, these connectors offer reliability in extreme conditions. Available in various styles including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Featuring aluminum shells with plating options such as cadmium and nickel, they meet RoHS compliance standards. With options for straight, RFI grounding, and standard plugs, along with multiple shell and insert arrangements, these connectors ensure secure and efficient connectivity. The use of M39029 rear release crimp contacts in various sizes guarantees high performance. Suitable for military and industrial use, these connectors are ideal for demanding environments where durability and reliability are essential.