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 such as front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options including cadmium and nickel, these connectors ensure durability and reliability. With a wide operating temperature range of -65°C to 200°C, they are suitable for diverse applications. RoHS certified finishes are also available. Ideal for military and industrial use, these connectors meet MIL-DTL-38999 II specifications, providing efficient electrical connections in demanding environments.