The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert for reliable electrical connections. With a wide operating temperature range of -65°C to 200°C, these connectors are suitable for diverse applications. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. Constructed with aluminum shells and offering multiple plating options including gold, electroless nickel, and anodized aluminum, these connectors ensure durability and conductivity. Compliant with military specification MIL-DTL-38999 II, they guarantee performance in demanding environments. With removable crimp contacts, bayonet coupling, and socket contact style, these connectors provide secure and efficient mating. Ideal for back panel wall mounting applications, they are designed for 500 mating cycles and offer environment-resistant features for reliable operation.