MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65 °C to 200 °C, these connectors ensure reliability in challenging conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with options for plating finishes such as electroless nickel and cadmium olive drab. Compliant with military specification MIL-DTL-38999 II, they guarantee performance and durability. Ideal for applications requiring secure electrical connections in demanding settings.