The MIL-DTL-38999 Series II connectors feature up to 128 contacts in a secure insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, they come in 9 shell sizes and 52 insert arrangements, ensuring compatibility with diverse systems. Utilizing reliable M39029 rear release crimp contacts, these connectors guarantee robust electrical connections. Constructed with aluminum shells and offering plating options like gold, electroless nickel, and cadmium-free finishes, they provide both durability and performance. Ideal for military and industrial use, these connectors meet stringent MIL-DTL-38999 II specifications, making them a trusted choice for demanding environments.