> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/pdfm-ug/v20-en-us/parallels-desktop-for-mac-20-users-guide/parallels-desktop-preferences-and-virtual-machine-settings/virtual-machine-settings/hardware-settings/usb-and-bluetooth-settings.md).

# USB & Bluetooth Settings

In the **USB & Bluetooth** pane, you can view and configure the USB- and Bluetooth-related settings.

To open these settings, choose **Actions** > **Configure** > **Hardware**, then click **USB & Bluetooth**.

<figure><img src="https://4047593329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNgaOYFJddKmopmi2cfn5%2Fuploads%2FfEM6zEeoa2IimWWclU8O%2FScreenshot%202024-01-19%20at%2018.30.17.png?alt=media&amp;token=d78420a8-ef26-45ff-bdab-38c621e71f9f" alt="" width="563"><figcaption></figcaption></figure>

<table><thead><tr><th width="312">Option</th><th>Description</th></tr></thead><tbody><tr><td><strong>Share Bluetooth devices with Windows</strong></td><td>Use this option to enable or disable Bluetooth devices sharing.</td></tr><tr><td><strong>Share smart card readers with Windows</strong></td><td><p>When this option is selected, you can use your Mac's smart card readers in Windows.</p><p>Please note that you will be able to use only those smart card readers that function properly in macOS (i.e. have the necessary drivers installed).<br></p><p>If your smart card reader works in macOS but for some reason doesn't appear in Windows, please try to connect it using the <strong>Devices</strong> > <strong>USB &#x26; Bluetooth</strong> menu as <a href="/landing/pdfm-ug/v20-en-us/parallels-desktop-for-mac-20-users-guide/use-windows-on-your-mac/connecting-external-devices.md">described here</a>.</p></td></tr><tr><td><strong>Allow external devices</strong> (available in Parallels Desktop for Mac Business Edition only)</td><td>Use this list to specify what devices can be connected to the virtual machine via USB.</td></tr><tr><td><strong>Enable USB 3.1</strong></td><td><p>This option is available only on Mac computers with an Intel processor. It enables USB 3.1 support and is selected by default. However, if you <a href="/landing/pdfm-ug/v20-en-us/parallels-desktop-for-mac-20-users-guide/use-windows-on-your-mac/connecting-external-devices.md">connect a USB device to your machine</a> but it is not detected or doesn't work, try to deselect this option, restart the virtual machine, and connect the device once again.</p><p>On Apple Silicon Macs, USB 3.1 support is always enabled. Otherwise, the keyboard and mouse will not work in virtual machines.</p></td></tr></tbody></table>


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