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 of -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 installation. With options for straight, RFI grounding, and 90-degree cable clamp plugs, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offered in different plating finishes including cadmium-free options, they ensure reliability and durability in military and industrial applications. With RoHS compliance and a service rating of II, they guarantee high performance in demanding environments.