The MIL-DTL-38999 Series I connectors boast a rugged design, with up to 128 contacts housed in a sealed insert. Operating flawlessly in extreme temperatures ranging from -65°C to 200°C, these connectors are a reliable choice for demanding environments. Featuring various mounting options such as front wall, rear wall, and jam nut receptacles, they offer versatility in installation. Utilizing M39029 rear release crimp contacts in different sizes, including coax and twinax, these connectors ensure secure and efficient connections. Crafted from high-strength aluminum, they come in a range of plating options, including cadmium-free finishes for RoHS compliance. With a service rating of M and a conductivity level of conductive, they are suitable for a variety of applications where durability and performance are paramount.