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# slotNames

A list of identifiers for all the Smart Card reader slots available to the system.

```
var slotNames: [String] { get }
```

## Discussion

Use Key-Value Observing on this property to be notified for changes to available Smart Card reader slots. For more information, see [Key-Value Observing Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/KeyValueObserving/KeyValueObserving.html#//apple_ref/doc/uid/10000177i).

---

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