MIL-DTL-38999 Series I connectors offer high performance in harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The connectors come in durable aluminum shells with options for plating, including cadmium and nickel finishes. Featuring bayonet coupling and wall mounting options, they are designed for reliability in military and industrial settings. RoHS compliant versions are also available, ensuring environmental responsibility.