MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with a choice of plating options, they ensure reliable operation in temperatures ranging from -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, they provide secure connections with gold plating for optimal conductivity. With a mating type of bayonet and service rating of I, these connectors are ideal for demanding applications requiring durability and reliability.