MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an insert and offering front wall mount, rear wall mount, and jam nut receptacles. With an operating temperature range from -65°C to 200°C, they are ideal for harsh conditions. These connectors utilize M39029 rear release crimp contacts in various sizes and are available in 9 shell sizes with 52 insert arrangements. Constructed with high-strength aluminum shells, they come in a range of plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. RoHS certified finishes are also available. Perfect for military and industrial applications, MIL-DTL-38999 Series I connectors ensure secure and reliable electrical connections in demanding situations.