MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in a sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, along with jam nut receptacles. Utilizing M39029 rear release crimp contacts, they ensure reliable performance in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). With a wide range of shell sizes and insert arrangements, they cater to diverse application needs. Constructed from high-strength aluminum, these connectors come with various plating options, including cadmium-free finishes for RoHS compliance. Operating efficiently in temperatures ranging from -65 °C to 200 °C, they are ideal for demanding military and industrial environments.