MIL-DTL-38999 Series II connectors are designed for rugged environments, offering exceptional performance with up to 128 contacts in an insert. These connectors are environmentally sealed, ensuring reliable operation in harsh conditions. With an operating temperature range of -65 °C to 200 °C, they are suitable for a wide range of applications. The thin-walled, restricted-length design features various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with different plating options, they meet stringent military specifications for durability and performance. The connectors use M39029 rear release crimp contacts, providing secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Offering RoHS compliant finishes, these connectors are ideal for demanding environments requiring reliable electrical connections.