MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. These connectors, available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, offer versatility in application. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity. The aluminum shells come with plating options including cadmium-free finishes, meeting RoHS certification. Suitable for military and industrial use, these connectors provide durability and performance in demanding conditions.