MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various styles including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure connections. Constructed with aluminum shells and plated with options such as gold and electroless nickel, they guarantee durability and reliable conductivity. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for applications requiring rugged performance in demanding environments.