MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65°C and 200°C, these connectors offer durability in extreme conditions. Available in various mounting styles like front and rear wall mount, jam nut, and box mount, they provide versatility for different applications. With options for straight, RFI grounding, and 90-degree cable clamp plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with aluminum shells and offering plating choices like cadmium and electroless nickel, they meet stringent military specifications. Suitable for demanding environments, MIL-DTL-38999 Series II connectors deliver performance and durability in critical operations.