MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring a versatile range of receptacle options including front and rear wall mount, jam nut, and box mount configurations, these connectors ensure secure and reliable connections. With a rugged construction and environmental sealing, they provide durability and protection in demanding applications. Operating in temperatures ranging from -65 °C to 200 °C, they are suitable for use in extreme conditions. Available in various shell sizes and insert arrangements, these connectors utilize M39029 rear release crimp contacts for efficient and reliable connections. The aluminum shells come with multiple plating options, including cadmium and electroless nickel, catering to diverse needs. RoHS compliant finishes are also available, ensuring environmental responsibility. Suitable for military and industrial applications, these connectors are ideal for use in aerospace, defense, and other critical sectors.