MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with front and rear wall mount options, jam nut, and box mount receptacles. Operating in temperatures ranging from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. With 52 insert arrangements and various plating options, including RoHS certified finishes, they provide versatility for different applications. Made of aluminum, they ensure durability and are available in shell size 16. The removable crimp contacts, with gold plating, guarantee efficient connectivity, while the bayonet coupling system ensures secure mating. Meeting military specification MIL-DTL-38999 II, these connectors are ideal for demanding environments where rugged performance is essential.