The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environment applications with a wide operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for RoHS certified cadmium-free plating. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections for military and industrial use. Utilizing M39029 rear release crimp contacts, they guarantee reliability with a mating life of 500 cycles. The gold-plated contacts, along with RFI grounding plugs, provide excellent conductivity and environmental resistance. Suitable for back panel wall mounting, these connectors are essential for demanding environments where durability and performance are paramount.