MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. With an impressive operating temperature range from -65 °C to 200 °C, these connectors are ideal for harsh conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connectivity. Made of aluminum, they come in plating options including cadmium and nickel, meeting RoHS standards. Perfect for military and industrial applications, these connectors ensure durability, with gold-plated contacts and a service rating of I.