MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert. Designed for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in various plating options, including cadmium-free finishes, ensuring durability and reliability. These military-spec connectors, with gold contact plating and electroless nickel coating, offer excellent conductivity and environmental resistance, making them ideal for mission-critical systems. With a mating life of 500 cycles, they provide long-lasting performance in demanding environments.