The MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are built to withstand harsh conditions. Available in various mounting options like front and rear wall mount, jam nut, and box mount, they provide flexibility in installation. The connectors feature 52 insert arrangements with M39029 rear release crimp contacts, ensuring reliable connections. Constructed with aluminum shells and offering plating options including electroless nickel and cadmium finishes, they guarantee durability. RoHS compliant versions are also available. Suitable for military and industrial applications, these connectors are ideal for environments requiring high-performance and reliability.