MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These environmentally sealed connectors operate reliably in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors come in aluminum shells with multiple plating options, including cadmium-free finishes, ensuring durability and compliance with RoHS standards. With rear release crimp contacts and a range of shell sizes and insert arrangements, they offer flexibility for different connectivity needs. Perfect for military and aerospace applications, these connectors guarantee secure and reliable electrical connections in demanding environments.