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 environmentally sealed for reliable performance. Available in various configurations like front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. The connectors come in aluminum shells with options for plating, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. With a durable construction and military specification compliance, these connectors are ideal for demanding industrial and aerospace environments.