The MIL-DTL-38999 Series II connectors boast high performance and durability in harsh environments, with up to 128 contacts sealed within their inserts. Designed for a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable connectivity in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. Featuring aluminum shells with multiple plating choices such as electroless nickel and cadmium finishes, these connectors ensure excellent corrosion resistance. With M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they guarantee secure and efficient connections. RoHS compliant options are also available, making them environmentally friendly choices for demanding military and industrial applications.