MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. The high strength aluminum shells come with a variety of plating options, including cadmium-free finishes. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide reliable connectivity in military and industrial settings. The use of M39029 rear release crimp contacts ensures secure connections, while the Bayonet coupling mechanism facilitates easy mating. Overall, MIL-DTL-38999 Series I connectors are ideal for demanding environments where durability and performance are essential.