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 from -65 °C to 200 °C, these connectors ensure reliability in challenging conditions. The thin-walled, restricted length design offers various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with multiple plating options, they meet stringent military specifications for durability. Removable crimp contacts and bayonet coupling provide secure connections, making them ideal for applications requiring high performance and resilience.