MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in a sealed insert, designed for harsh environments. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering multiple plating options, they ensure durability and corrosion resistance. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications in military and industrial settings. RoHS certified finishes are also available, making them environmentally friendly choices.