MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, designed for harsh environments. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options such as electroless nickel, they ensure durability and reliable performance. Meeting MIL-DTL-38999 II military specifications, these connectors are essential for mission-critical systems requiring secure and efficient electrical connections.