MIL-DTL-38999 Series II connectors offer robust performance with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Crafted from durable aluminum with a choice of plating options, these connectors ensure reliable conductivity with gold-plated contacts. Operating temperature ranges from -65 °C to 200 °C, meeting stringent military specifications for performance in demanding applications. With RoHS compliant finishes available, these connectors are suitable for a wide range of industrial and military applications.