MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a secure insert. With an operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications. Featuring various mount types such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in aluminum shells with plating options including electroless nickel and cadmium finishes, these connectors ensure durability and reliability. Utilizing M39029 rear release crimp contacts, they offer secure connections in sizes 22D, 22M, 22, 20, 16, and 12. RoHS compliant options are also available, making them suitable for a wide range of projects requiring high-performance connectivity in challenging environments.