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 aluminum shells with a range of plating options, including RoHS certified finishes, they ensure reliable operation in extreme conditions. With a wide selection of insert arrangements and contact sizes, these connectors provide versatility for military and aerospace applications. Operating between -65 °C and 200 °C, they guarantee exceptional performance and durability, making them ideal for demanding environments.