The MIL-DTL-38999 Series I connectors offer exceptional versatility for demanding environments with up to 128 contacts housed in a durable insert. These connectors are fully sealed for environmental protection, operating seamlessly in temperatures ranging from -65 °C to 200 °C. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure installations. With 52 insert arrangements and various plating choices, including RoHS compliant finishes, these connectors are adaptable to diverse needs. Constructed with high-strength aluminum shells and utilizing M39029 rear release crimp contacts, they guarantee reliable performance. Suitable for military and industrial applications, the MIL-DTL-38999 Series I connectors are a steadfast solution for critical connectivity requirements.