The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact types for optimal connectivity. Constructed with aluminum shells and offering plating options such as electroless nickel and cadmium finishes, they ensure durability and reliability. With RoHS compliant variants, these connectors meet environmental standards while providing superior performance in rugged conditions.