The MIL-DTL-38999 Series II connectors offer exceptional durability and performance for harsh environments. With up to 128 contacts and environmental sealing, they ensure reliable connectivity in extreme conditions. Featuring various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they provide versatile installation possibilities. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they meet stringent industry standards. With a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for military, aerospace, and industrial applications requiring rugged and high-performance connectivity solutions.