MIL-DTL-38999 Series II connectors boast up to 128 contacts within their inserts, offering robust environmental sealing for reliable performance. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh environments. Featuring various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, ensuring secure connections. Crafted from durable aluminum and offered with different plating options, including RoHS-certified cadmium-free finishes, they prioritize both performance and environmental compliance. Perfect for military and industrial applications, these connectors guarantee high conductivity and ingress protection, making them essential components for demanding operating conditions.