MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts, ensuring reliable operation in harsh environments. Designed for rugged applications, these connectors feature a wide operating temperature range from -65 °C to 200 °C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different installation requirements. With 52 insert arrangements and M39029 rear release crimp contacts in multiple sizes, these connectors offer flexibility in design. The aluminum shells come in different plating options, including cadmium-free finishes, meeting RoHS compliance. Ideal for military and industrial use, these connectors guarantee durability and performance with their conductive contact design and environment-resistant features.