MIL-DTL-38999 Series II connectors feature up to 128 contacts, offering robust connectivity in harsh environments. These environmentally sealed connectors operate effectively in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, and more, they cater to diverse installation needs. The connectors, with 52 insert arrangements, utilize M39029 rear release crimp contacts for reliable performance. Crafted from aluminum, they come in different plating options including electroless nickel and cadmium finishes. With a service rating of M and a mating type of bayonet, these connectors ensure secure and durable connections.