MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes, ensuring durability and compliance with RoHS regulations. Suitable for military and industrial applications, these connectors are ideal for wall mounting installations, offering bayonet coupling and RFI grounding options for added versatility.