The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility for various applications. These connectors, meeting military specification MIL-DTL-38999 I, ensure reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Constructed with high-strength aluminum shells and available in multiple plating options, including cadmium-free finishes, they are durable and corrosion-resistant. Utilizing M39029 rear release crimp contacts, these connectors come in 52 insert arrangements, accommodating different contact sizes. Ideal for military and industrial use, they provide secure and efficient electrical connections with gold-plated contacts. The Bayonet coupling mechanism and environmental sealing make them suitable for demanding situations, while their RoHS compliance underscores their commitment to environmental responsibility.