The 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 like front wall mount and jam nut receptacles, they ensure secure connections. With an operating temperature range from -65 °C to 200 °C, these connectors are reliable in extreme conditions. Available in aluminum shells with plating options such as electroless nickel and cadmium finishes, they meet diverse application needs. RoHS compliant and offering 500 mating cycles, these connectors guarantee durability and conductivity, making them essential for military and industrial use.