MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mount types including front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure durability and compliance with industry standards. Utilizing M39029 rear release crimp contacts, they provide secure and efficient connections. The Series II connectors are ideal for military, aerospace, and industrial applications where ruggedness and performance are essential.