The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, they are environmentally sealed for reliable performance. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Made with aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors are durable and corrosion-resistant. Suitable for military and industrial applications, they provide reliable connectivity in demanding conditions.