MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range from -65°C to 200°C, these connectors are environmentally sealed for optimal performance. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The aluminum shells come with plating options including electroless nickel and cadmium finishes, meeting RoHS compliance standards. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections. Designed for durability, they offer 500 mating cycles and feature EMI/RFI shielding for enhanced signal integrity. Suitable for military and industrial use, the MIL-DTL-38999 Series II connectors are ideal for demanding environments requiring rugged and reliable connectivity solutions.