MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, providing robust environmental sealing and a wide operating temperature range from -65°C to 200°C. These connectors, designed for harsh environments, offer various mounting options such as front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with multiple plating options including cadmium-free finishes, they ensure reliable performance. The 52 insert arrangements, accommodating M39029 rear release crimp contacts, offer flexibility for diverse applications. With a straight plug design and gold-plated removable crimp contacts, they guarantee secure connections in military and industrial settings.