MIL-DTL-38999 Series I connectors offer durable performance with up to 128 contacts in an insert, designed for harsh environments. Featuring a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. The high strength aluminum shells come with multiple plating options, including cadmium-free finishes for RoHS compliance. With options for front and rear wall mount, as well as jam nut receptacles, these connectors ensure secure and efficient installations. Designed to meet military specifications, they provide reliable performance in challenging conditions.