The MIL-DTL-38999 Series I connectors feature up to 128 contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options like front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors offer versatility. Constructed with high-strength aluminum shells and plated with options like gold and electroless nickel, they guarantee durability. Suitable for military and industrial applications, these connectors meet stringent specifications for reliability and performance.