MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -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 connections. The connectors come in high-strength aluminum shells with multiple plating options, including cadmium-free finishes for RoHS compliance. Offering front and rear wall mount options, as well as jam nut receptacles, they provide flexibility in installation. With bayonet coupling and gold-plated contacts, they ensure secure and durable connectivity. Suitable for military and industrial use, these connectors meet MIL-DTL-38999 I specifications for performance and reliability in challenging environments.