MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts housed in an environmentally sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are designed for durability. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts, ensuring secure connections. The connectors come in robust aluminum shells with multiple plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, they provide reliable performance with their bayonet coupling and wall mounting configurations. With gold-plated contacts and a service rating of I, these connectors deliver enhanced conductivity and longevity, making them ideal for critical operations.