The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options such as front wall mount, rear wall mount, and jam nut receptacles. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications. Available in nine shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, ensuring reliable connections. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors are durable and versatile. Perfect for military and industrial use, they guarantee optimal performance in challenging conditions.