MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, these connectors come in various styles such as front wall mount, rear wall mount, and jam nut receptacles. With options for straight, RFI grounding, and standard plugs, they offer versatility in connectivity. Available in aluminum shells with plating choices including cadmium-free finishes, these connectors meet stringent military specifications for reliability. Suitable for applications requiring high performance in harsh conditions, they ensure secure and durable electrical connections.