The MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure installations. With a wide operating temperature range of -65°C to 200°C, these connectors are suitable for diverse applications. Compliant with military specification MIL-DTL-38999 II, they guarantee reliability and performance. Constructed with aluminum shells and available in different plating options, such as electroless nickel and cadmium finishes, they cater to specific needs. Utilizing M39029 rear release crimp contacts, these connectors ensure efficient connectivity in demanding conditions. Ideal for environment-resistant box and through bulkhead mounting receptacle types, they are essential for critical operations. With RoHS compliant options, they also meet environmental standards, making them a versatile choice for various industries.