The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front and rear wall mount options, jam nut and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, are constructed with durable aluminum shells and feature electroless nickel plating for enhanced protection. Operating seamlessly in temperatures ranging from -65 °C to 200 °C, they are ideal for demanding applications. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity, with gold-plated contact surfaces for optimal signal transmission. Trusted for their rugged performance, these connectors are a vital component in mission-critical systems.