MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, featuring environmental sealing and a wide operating temperature range from -65 °C to 200 °C. Available in various mounting styles like front and rear wall mount, jam nut, and box mount receptacles, they are designed for harsh environments. With options for straight, RFI grounding, and 90-degree cable clamp plugs, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating choices such as cadmium and nickel, they meet stringent military specifications for reliability. RoHS compliant finishes ensure environmental responsibility in diverse applications requiring durable and high-performance connectivity solutions.