MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering secure environmental sealing. With a wide operating temperature range from -65°C to 200°C, these connectors are reliable in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts for efficient connectivity. Made of aluminum, they are durable and come with plating options including cadmium-free finishes for RoHS compliance. These connectors, meeting MIL-DTL-38999 II specifications, are ideal for military and industrial applications requiring high-performance and rugged connectivity solutions.