MIL-DTL-38999 Series II connectors offer robust performance with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options such as front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with multiple plating options including cadmium-free finishes, they ensure reliable connectivity in demanding conditions. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements. With a wide operating temperature range from -65°C to 200°C and gold-plated contacts, they guarantee high performance even in extreme temperatures. Suitable for military and industrial applications, these connectors provide secure and durable electrical connections for critical systems.