MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with multiple plating choices, meeting RoHS compliance standards. Utilizing M39029 rear release crimp contacts, they ensure secure connections. With a rugged construction and high mating cycle durability, these connectors are suitable for military and industrial use.