MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in demanding conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility for different applications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Constructed with aluminum shells and offering multiple plating options, including cadmium-free finishes, they meet stringent quality standards. The straight plug design, with options for RFI grounding and 90 degree cable clamp, caters to diverse connectivity needs. Suitable for military and industrial use, these connectors provide durability and conductivity, with a service rating of I and a mating life of 500 cycles.