MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range from -65°C to 200°C, these connectors offer durability in extreme conditions. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, and more, they provide versatility for different applications. The connectors come in aluminum shells with options for plating finishes including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, meeting RoHS compliance requirements. These connectors, with M39029 rear release crimp contacts, ensure secure connections with options for sizes 22D, 22M, 22, 20, 16, and 12. Ideal for military and industrial use, the MIL-DTL-38999 Series II connectors offer reliable connectivity in demanding environments.