MIL-DTL-38999 Series II connectors are designed to meet the demands of harsh environments, offering secure connectivity with up to 128 contacts in an insert. These circular connectors feature a range of mounting options, including front and rear wall mount, jam nut, and box mount receptacles. With operating temperatures spanning from -65 °C to 200 °C, they are suitable for a variety of applications. Utilizing M39029 rear release crimp contacts, they ensure reliable performance, while the aluminum shells with various plating options guarantee durability. RoHS certified finishes are available, making them environmentally friendly choices. Ideal for military and industrial use, these connectors are built to withstand rugged conditions, providing a dependable solution for your connectivity needs.