MIL-DTL-38999 Series I connectors are designed for rugged environments, with up to 128 contacts housed in an insert for secure connectivity. These connectors offer reliable performance in extreme conditions, with an operating temperature range from -65 °C to 200 °C. Featuring front wall mount, rear wall mount, and jam nut receptacles, they provide versatile installation options. The connectors are constructed with high-strength aluminum shells and are available in various plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts in different sizes, they ensure efficient signal transmission. With a mating type of bayonet coupling and a shell style of back panel wall mounting, these connectors are suitable for diverse applications requiring durable and secure electrical connections.