The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert with front and rear mount options. These connectors feature a wide operating temperature range from -65 °C to 200 °C, ensuring reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors provide excellent durability and performance. Suitable for military and industrial applications, they are ideal for use in demanding environments where reliability is paramount.