The MIL-DTL-38999 Series II connectors offer robust performance in harsh environments with up to 128 contacts sealed within an insert. Designed for military specifications, these connectors feature various receptacle types, including front and rear wall mounts, jam nuts, and box mounts, ensuring versatile installation options. With operating temperatures ranging from -65 °C to 200 °C, they are suitable for a wide range of applications. Built with aluminum shells and available in different plating options, such as gold and electroless nickel, these connectors guarantee reliable conductivity. Meeting RoHS compliance standards, they offer peace of mind in terms of environmental responsibility. The removable crimp contacts and bayonet coupling mechanism ensure easy and secure connections, with a mating life of 500 cycles. Ideal for environments requiring high durability, these connectors are classified for service in Class E conditions, providing reliable performance in demanding settings.