The MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts housed in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer versatility and reliability. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. Offering 52 insert arrangements with M39029 rear release crimp contacts, these connectors ensure secure connections. Constructed with aluminum shells and plated with options including electroless nickel, they provide durability and corrosion resistance. Ideal for military and industrial applications, the MIL-DTL-38999 Series II connectors guarantee high performance in demanding conditions.