The 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 reliable performance in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Constructed with aluminum shells and offering RoHS compliant finishes, they meet stringent military specifications for durability and performance. Perfect for use in aerospace, defense, and industrial applications, these connectors provide secure and reliable electrical connections in even the harshest environments.