MIL-DTL-38999 Series I connectors offer high performance in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors are versatile and reliable. 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-free finishes. Ideal for military and industrial applications, they meet stringent standards for reliability and performance. The Series I connectors are designed for straight plug mounting with bayonet coupling, making them suitable for a wide range of uses.