MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts housed in an insert. These connectors are environmentally sealed, with an operating temperature range of -65°C to 200°C, ensuring reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. The connectors come in aluminum shells with a choice of plating options, including cadmium-free finishes for RoHS compliance. With M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they provide secure and efficient connectivity. Suitable for military and industrial use, these MIL-DTL-38999 II connectors guarantee durability and conductivity in demanding settings.