# Priority

> The priority level attached to the AsyncReadManager read request.

## Definition

* **Type:** Enum
* **Namespace:** [Unity.IO.LowLevel.Unsafe](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public enum Priority
```

## Remarks

The [AsyncReadManager](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe/asyncreadmanager.md) always starts higher priority read requests before lower priority requests.

## Fields

| Value                                                                                             | Description            |
| ------------------------------------------------------------------------------------------------- | ---------------------- |
| [PriorityHigh](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe/priority/priorityhigh.md) | High priority request. |
| [PriorityLow](/engine/6000.6/script-reference/unity/io/lowlevel/unsafe/priority/prioritylow.md)   | Low priority request.  |