The MIL-DTL-38999 Series II connectors boast exceptional durability and versatility, ideal for harsh environments with their environmental sealing and wide operating temperature range from -65°C to 200°C. Featuring up to 128 contacts in an insert, these connectors offer 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 reliable connectivity. Crafted from aluminum with multiple plating options, including RoHS compliant finishes, these connectors ensure superior performance in demanding applications.