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, these connectors are ideal for demanding applications. Available in various mounting styles including front and rear wall mount, jam nut, and box mount, they offer versatility in installation. The connectors come in aluminum shells with options for different plating finishes, ensuring durability and reliability. Utilizing M39029 rear release crimp contacts, they provide secure connections. With RoHS compliant versions available, these connectors are suitable for a range of military and industrial applications.