MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, these connectors are versatile and reliable. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8 for enhanced connectivity. Constructed with high-strength aluminum shells and offering multiple plating options including cadmium-free finishes, these connectors are suitable for diverse applications. RoHS compliant options are also available, making them an environmentally conscious choice for demanding environments.