MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The connectors, meeting military specification MIL-DTL-38999 I, offer front and rear wall mount as well as jam nut receptacles, providing versatility for different applications. Utilizing M39029 rear release crimp contacts, they ensure secure connections, while the RFI grounding plugs enhance signal integrity. Suitable for demanding environments, these connectors are ideal for military, aerospace, and industrial applications.