The MIL-DTL-38999 Series I connectors offer a durable solution for harsh environments, with up to 128 contacts in an insert. Designed for a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Featuring various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, they provide versatility in installation. The connectors utilize M39029 rear release crimp contacts, ensuring secure connections. With options for different plating finishes including cadmium-free choices, they meet RoHS compliance standards. Constructed with high-strength aluminum shells, these connectors are built to last, with an ingress protection rating for environmental resistance. Suitable for military and industrial use, they offer reliable performance in challenging conditions.