The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with a range of plating options, they ensure durability and reliability. With RoHS compliant finishes and M39029 rear release crimp contacts, they meet stringent quality standards. Operating in temperatures ranging from -65 °C to 200 °C, these connectors are ideal for demanding applications in aerospace, defense, and industrial settings.