MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range of -65 °C to 200 °C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With 52 insert arrangements and utilizing M39029 rear release crimp contacts, they ensure reliable connectivity. The aluminum shells come in multiple plating options, including cadmium-free finishes, meeting RoHS compliance. Perfect for military and industrial use, these connectors provide durability and performance in demanding conditions.