MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer versatile connectivity options. These connectors, compliant with military specification MIL-DTL-38999 II, ensure durability with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering options like gold contact plating and electroless nickel coating, they guarantee reliable performance. Perfect for applications requiring environmental resistance, these connectors are essential for demanding military and industrial environments.