# UsbSpeed

`import { UsbSpeed } from "destack:device/binding";`

USB device speed.

```ds title="UsbSpeed"
export enum UsbSpeed {
    Unknown = 0,
    Low = 1,
    Full = 2,
    High = 3,
    Super = 4,
    SuperPlus = 5,
}
```

[language/library/src/device/binding/usb.ds:12:25](https://github.com/destack-sh/destack/blob/main/language/library/src/device/binding/usb.ds#L12-L25)

## Variants

### `Unknown = 0`

Host did not report the negotiated speed.

### `Low = 1`

Low-speed USB.

### `Full = 2`

Full-speed USB.

### `High = 3`

High-speed USB.

### `Super = 4`

SuperSpeed USB.

### `SuperPlus = 5`

SuperSpeedPlus USB.