The MIL-DTL-38999 Series I connectors boast a robust design with up to 128 contacts, making them ideal for demanding environments. These circular receptacles, available in various mount types including jam nut, feature a wide operating temperature range from -65 °C to 200 °C. Crafted from high strength aluminum, they offer durability and reliability. With options for RoHS certified finishes, including cadmium-free plating, these connectors ensure environmental compliance. Their versatile insert arrangements, utilizing M39029 crimp contacts, cater to different connectivity needs. Whether for front or rear wall mount applications, the MIL-DTL-38999 I connectors provide secure and efficient connections, with RFI grounding options available. Suitable for military and industrial use, these connectors guarantee performance in harsh conditions.