The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various mount types, including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors boast a durable aluminum shell with options for plating, such as cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Perfect for military and industrial use, these connectors are rugged, with a service rating of M and an ingress protection level of Environment Resistant.