The MIL-DTL-38999 Series II connectors boast a high contact density of up to 128 contacts, providing robust connectivity in demanding environments. Designed for harsh conditions, these connectors feature front and rear wall mount options, as well as jam nut and box mount receptacles. With a wide operating temperature range of -65°C to 200°C, they offer reliable performance in extreme temperatures. Utilizing M39029 rear release crimp contacts, these connectors come in various shell sizes and insert arrangements, accommodating diverse applications. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they ensure durability and environmental compliance. Perfect for military and aerospace applications, these connectors are ideal for ensuring secure and efficient electrical connections in critical systems.