MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts housed in an insert for secure connectivity. These connectors are environmentally sealed, ensuring reliable performance even in extreme conditions with an operating temperature range from -65°C to 200°C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Available in aluminum shells with different plating options including cadmium-free finishes, they meet RoHS certification standards. With M39029 rear release crimp contacts in multiple sizes, they provide flexibility in contact arrangements. The connectors are ideal for military and aerospace applications, guaranteeing durability with a service rating of I and 500 mating cycles. Trust in the MIL-DTL-38999 Series II connectors for dependable connectivity in harsh environments.