The MIL-DTL-38999 Series I connectors offer exceptional performance in harsh environments, boasting up to 128 contacts in a sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are designed for reliability. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors ensure durability. Whether for front or rear wall mount or jam nut receptacles, their bayonet coupling design and gold contact plating guarantee efficient signal transmission. With a service rating of I and ingress protection, these connectors are ideal for demanding applications.