MIL-DTL-38999 Series I connectors offer reliable performance in harsh environments with up to 128 contacts in an insert. These environmentally sealed connectors feature a wide operating temperature range from -65°C to 200°C, ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. With options for different plating finishes including RoHS compliant cadmium-free coatings, these connectors ensure longevity and durability. Suitable for military and industrial use, they come in high-strength aluminum shells with options for front wall mount, rear wall mount, and jam nut receptacles. The bayonet coupling design and RFI grounding plugs further enhance their versatility. Trusted for their performance, MIL-DTL-38999 Series I connectors are a reliable choice for critical electrical connections.