The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65°C to 200°C, these connectors are suitable for a wide range of applications. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, and box mount, they offer flexibility in installation. The connectors come in aluminum shells with multiple plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, they ensure secure connections. These connectors, with a rugged construction and gold contact plating, are ideal for military and aerospace applications, meeting the stringent requirements of MIL-DTL-38999 II specifications.