Abstract: A method and apparatus for providing connector keying and identification for unidirectional fiber cables are disclosed. Three connector subassemblies are provided, wherein first and second subassemblies are both oriented in alignment to prevent a cable for coupling to receive connections from being plugged into transmit connections and vice versa. A third portion of the connector assembly slides into the second portion and provides a place to put a label identifying the cables destination and source. All portions can be designed for hand assembly and disassembly, allowing dynamic field setup.