The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering front and rear wall mount, jam nut, and box mount receptacles. With operating temperatures ranging from -65°C to 200°C, these connectors are ideal for a wide range of applications. Made of aluminum, they come in various plating options, including cadmium-free finishes, ensuring durability and reliability. Utilizing M39029 rear release crimp contacts, they provide secure connections. RoHS certified and environmentally sealed, these connectors meet stringent military specifications, making them suitable for demanding industrial and aerospace environments.