MIL-DTL-38999 Series II connectors offer robust performance with up to 128 contacts in an environmentally sealed insert, ideal for harsh environments. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for secure connections. Crafted from aluminum, they come with plating options like cadmium and electroless nickel, ensuring reliable performance. With a wide operating temperature range from -65°C to 200°C, they are suitable for demanding applications. Trust in the military-specification compliance and RoHS-certified finishes for quality assurance.