The MIL-DTL-38999 Series I connectors offer high-performance connectivity in 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 accommodate M39029 rear release crimp contacts for secure connections. The connectors come in durable aluminum shells with options for different plating finishes, including RoHS compliant choices. Designed for military specifications, they provide reliable performance with bayonet coupling and wall mounting options. Suitable for both front and rear panel installations, these connectors ensure rugged and efficient electrical connections in aerospace, defense, and industrial settings.