(devices-usb)=
# Type: `usb`

```{note}
The `usb` device type is supported for both containers and VMs.
It supports hotplugging for both containers and VMs.
```

USB devices make the specified USB device appear in the instance.
For performance issues, avoid using devices that require high throughput or low latency.

For containers, only `libusb` devices (at `/dev/bus/usb`) are passed to the instance.
This method works for devices that have user-space drivers.
For devices that require dedicated kernel drivers, use a [`unix-char` device](devices-unix-char) or a [`unix-hotplug` device](devices-unix-hotplug) instead.

For virtual machines, the entire USB device is passed through, so any USB device is supported.
When a device is passed to the instance, it vanishes from the host.

## Device options

`usb` devices have the following device options:

% Include content from [config_options.txt](../config_options.txt)
```{include} ../config_options.txt
    :start-after: <!-- config group devices-usb start -->
    :end-before: <!-- config group devices-usb end -->
```