MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various configurations such as front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. Constructed with high-strength aluminum shells and offered in different plating options like cadmium and nickel, they ensure reliable performance. Meeting MIL-DTL-38999 I military specifications, these connectors provide rugged connectivity solutions for critical systems.