MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors have a wide operating temperature range from -65°C to 200°C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and a choice of plating options, they ensure durability and performance. With RoHS certified finishes, they meet environmental standards while offering exceptional conductivity and ingress protection. Ideal for military and industrial applications, these connectors guarantee reliable signal transmission in demanding conditions.