MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments with up to 128 contacts. These circular receptacles, featuring front and rear wall mount options, are designed for military specifications. With a wide operating temperature range of -65°C to 200°C and environmentally sealed construction, they ensure durability in demanding conditions. The connectors, available in various plating options, boast high-strength aluminum shells for added robustness. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient signal transmission. RoHS compliant finishes are also offered, making them a sustainable choice for aerospace and defense applications.