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 mounting options, as well as jam nut and box mount receptacles, they provide versatility in installation. These connectors feature a wide operating temperature range of -65 °C to 200 °C, ensuring reliability in extreme conditions. Utilizing M39029 rear release crimp contacts, they come in various shell sizes and insert arrangements. Constructed with aluminum shells and available in different plating options, including RoHS compliant finishes, they guarantee durability and performance. With gold-plated contacts and a mating type of bayonet coupling, these connectors ensure secure and reliable connections. Suitable for military and industrial applications, they offer environment resistance and conductivity, making them ideal for demanding environments.