MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments with up to 128 contacts. Featuring front and rear wall mount options, as well as jam nut receptacles, they are designed for durability. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for demanding applications. Made of high-strength aluminum, they come in various plating options, including gold, electroless nickel, and cadmium-free finishes, ensuring reliable conductivity. Their 52 insert arrangements, utilizing M39029 rear release crimp contacts, cater to diverse connection needs. Meeting military specification MIL-DTL-38999 I, these connectors provide rugged, environmentally sealed solutions for critical systems.