MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments. With up to 128 contacts in an insert, these connectors are designed for durability and reliability. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide versatile options for various applications. Operating seamlessly in temperatures ranging from -65 °C to 200 °C, they are suitable for demanding environments. The connectors come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts for secure connections. Made with high strength aluminum shells and offering a variety of plating options, including cadmium-free finishes, they meet stringent military specifications (MIL-DTL-38999 I). With a contact plating of gold and a service rating of I, these connectors ensure optimal performance even in challenging conditions.