The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environmental conditions with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer versatility for different applications. Constructed with high strength aluminum shells and offering RFI grounding options, they ensure reliable performance. With RoHS certified finishes available, including cadmium-free options, they meet environmental regulations. Ideal for military and industrial use, these connectors are known for their durability and conductivity, with gold plated contacts ensuring optimal signal transmission. The jam nut mounting and bayonet coupling design make installation easy and secure, while the removable crimp contacts allow for convenient maintenance. Perfect for applications requiring rugged and reliable connectivity in demanding environments.