MIL-DTL-38999 Series I connectors are robust and reliable solutions for harsh environments, featuring up to 128 contacts in an insert. These circular connectors, with options for front wall mount, rear wall mount, and jam nut receptacles, offer secure RFI grounding. With a wide operating temperature range from -65 °C to 200 °C, they are ideal for demanding applications. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they ensure efficient connectivity. Made of high-strength aluminum, these connectors are available in different plating options, including RoHS certified cadmium-free finishes. Suitable for military and industrial use, they guarantee durability and performance in challenging conditions.