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# VZUSBMassStorageDevice

A class that represents a hot-pluggable USB mass storage device.

```
class VZUSBMassStorageDevice
```

## Overview

Create this device either by instantiating it directly and passing [`VZUSBMassStorageDeviceConfiguration`](/documentation/Virtualization/VZUSBMassStorageDeviceConfiguration) to its initializer, or instantiating a `VZUSBMassStorageDeviceConfiguration` in a [`VZVirtualMachineConfiguration`](/documentation/Virtualization/VZVirtualMachineConfiguration). Direct instantiation creates an object that you can pass to [`attach(device:completionHandler:)`](/documentation/Virtualization/VZUSBController/attach(device:completionHandler:)). Instantiation through `VZUSBMassStorageDeviceConfiguration` makes the device available in the [`usbDevices`](/documentation/Virtualization/VZUSBController/usbDevices) property.

## Topics

### Creating a USB mass storage device

[`init(configuration:)`](/documentation/Virtualization/VZUSBMassStorageDevice/init(configuration:))

Creates a USB mass storage device with the provided configuration.

## See Also

[`VZUSBController`](/documentation/Virtualization/VZUSBController)

A class that represents a USB controller in a VM.


---

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