MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range from -65°C to 200°C. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer versatility in applications. With straight, RFI grounding, and standard plugs with a 90-degree cable clamp, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Made of aluminum with plating options including cadmium-free finishes, these connectors meet RoHS certification standards, offering reliability in demanding conditions.