MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature 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 secure connections. Constructed with aluminum shells and offering multiple plating options, these connectors ensure durability and reliability. With a wide operating temperature range from -65 °C to 200 °C, they are suitable for military and aerospace applications. RoHS compliant finishes are available, making them a sustainable choice for your connectivity needs.