MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed 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, these connectors offer versatility in applications. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity. Crafted from aluminum with plating options including cadmium-free finishes, they meet stringent RoHS certifications. Designed for military specifications, these circular plugs with gold-plated contacts and EMI/RFI shielding guarantee optimal performance in demanding conditions.