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 like front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility. The plugs, with straight, RFI grounding, and standard options, feature a 90-degree cable clamp. With 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts. Constructed with aluminum shells, they come in plating choices including cadmium-free finishes for RoHS compliance. Ideal for military and industrial applications, these connectors ensure reliable performance with their durable design.