MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for robust connectivity. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatile installation options. Operating between -65 °C and 200 °C, these connectors are environmentally sealed for reliable performance. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they ensure secure connections. Constructed with high-strength aluminum shells and available in multiple plating options, such as electroless nickel and cadmium finishes, they meet diverse application needs. RoHS certified options are also available, making them suitable for environmentally conscious projects. With their Bayonet coupling and MIL-DTL-38999 I military specification compliance, these connectors are ideal for demanding military and industrial settings.