MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a secure insert. These connectors, with a wide operating temperature range from -65 °C to 200 °C, are fully environmentally sealed for reliable performance. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure efficient connectivity. Constructed with aluminum shells and plated with options like electroless nickel, they provide durability and RoHS compliance. Perfect for military and industrial applications, these connectors deliver high performance and longevity.