The MIL-DTL-38999 Series II connectors are designed to endure harsh environments, with up to 128 contacts housed in an insert for robust connectivity. Featuring various receptacle types such as front and rear wall mount, jam nut, and box mount, these connectors offer versatility in installation. With an operating temperature range from -65°C to 200°C, they ensure reliability in extreme conditions. Utilizing M39029 rear release crimp contacts, they come in 9 shell sizes and 52 insert arrangements, suitable for diverse applications. Made of aluminum with plating options including electroless nickel, they provide durability and corrosion resistance. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for demanding environments requiring secure and efficient electrical connections.