MIL-DTL-38999 Series II connectors offer high performance with up to 128 contacts in an insert, ideal for harsh environments. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they ensure secure connections. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable connectivity. Crafted from aluminum with plating options including gold, electroless nickel, and cadmium-free finishes, they guarantee durability. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for a range of applications. Conforming to military specification MIL-DTL-38999 II, they provide dependable performance in demanding environments.