---
title: USBDevice.usbVersionMinor
slug: Web/API/USBDevice/usbVersionMinor
tags:
  - API
  - Property
  - Reference
  - USB
  - USBDevice
  - WebUSB
  - WebUSB API
  - usbVersionMinor
browser-compat: api.USBDevice.usbVersionMinor
---
{{SeeCompatTable}}{{APIRef("WebUSB API")}}

The **`usbVersionMinor`** read only property of the
{{domxref("USBDevice")}} interface is one of three properties that declare the USB
protocol version supported by the device. The other two properties
are USBDevice.usbVersionMajor and USBDevice.usbVersionSubminor.

## Syntax

```js
var serialNumber = USBDevice.usbVersionMinor
```

### Value

The second of three properties that declare the USB protocol version supported by the
device.

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}
