MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer flexibility for different applications. Made of high-strength aluminum, they come in a range of plating options, including cadmium-free finishes for RoHS compliance. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide secure connections in demanding settings. The use of M39029 rear release crimp contacts ensures reliable performance, while the bayonet coupling mechanism allows for easy mating. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors are trusted for their durability and reliability in critical operations.