The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts within an insert. With front and rear wall mount options, jam nut, and box mount receptacles, these connectors provide versatile installation possibilities. Featuring aluminum shells and various plating options including cadmium-free finishes, they ensure durability and environmental sealing. Operating between -65 °C and 200 °C, they are suitable for a wide range of applications. Utilizing M39029 rear release crimp contacts, they provide reliable connectivity. Their straight, RFI grounding, and standard plug configurations with 90-degree cable clamp offer flexibility in design. With RoHS compliance and a service rating of I, these connectors are ideal for military and industrial use.