The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. With front and rear wall mount options, as well as jam nut and box mount receptacles, they provide versatile connectivity solutions. These connectors, compliant with military specification MIL-DTL-38999 II, feature durable aluminum shells with various plating options, including electroless nickel and cadmium finishes. Operating within a wide temperature range of -65°C to 200°C, they ensure reliable performance in extreme conditions. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure and efficient connections. Suitable for military and aerospace applications, they are ideal for use in demanding environments where durability and performance are essential.