MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert. Designed for harsh environments, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With an operating temperature range from -65 °C to 200 °C, these connectors ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in various plating options, including cadmium-free finishes, meeting RoHS certification standards. These connectors, with gold contact plating and conductive conductivity, are ideal for military and aerospace applications requiring durable and reliable electrical connections.