MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert and offering front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles. With an operating temperature range of -65°C to 200°C, these connectors are ideal for a wide range of applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and plated with options such as electroless nickel, they ensure durability and reliability. Compliant with RoHS regulations, these connectors are essential for military and industrial use.