MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, these connectors are ideal for back panel and wall mounting, with bayonet coupling for easy installation. With gold-plated contacts and a durable construction, they ensure reliable electrical connectivity in demanding settings.