The MIL-DTL-38999 Series II connectors are designed for demanding environments, featuring up to 128 contacts and robust environmental sealing. With a wide operating temperature range of -65°C to 200°C, these connectors ensure reliable performance in extreme conditions. Available in various mounting styles, such as front and rear wall mount, jam nut, and box mount, they offer flexibility for different applications. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, they meet RoHS compliance standards. Perfect for military and industrial use, these connectors provide secure and durable connectivity for critical systems.