MIL-DTL-38999 Series I connectors offer robust performance with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options and RFI grounding plugs. With a wide range of shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in different sizes, ensuring versatile connectivity. The high-strength aluminum shells come in multiple plating options, including RoHS-certified finishes, for enhanced durability. Operating between -65 °C and 200 °C, these connectors are ideal for demanding applications that require reliable and secure electrical connections.