MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts housed in a secure insert. These connectors offer exceptional durability with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. With options for straight, RFI grounding, and standard plugs, along with multiple shell sizes and insert arrangements, these connectors offer flexibility in design. Constructed with aluminum shells and various plating options, including RoHS certified finishes, they ensure reliable performance in demanding conditions. Meeting stringent military specifications, these connectors are ideal for aerospace, defense, and other mission-critical applications.