What is USB Direct Connection

UDOO Dual/Quad's Micro USB port can be used both to power up the board and to connect it to our computer.

Connecting UDOO Dual/Quad to your computer will result in:

  • UDOO Dual/Quad powering on, taking power from its USB Port
  • A storage device will be available, containing UDOO Dual/Quad'S Kernel and DTB files, together with an offline documentation and quick start guide
  • UDOO Dual/Quad will establish a network connection with your Computer, allowing to use it in [headless mode]!Getting_Started/Use_as_a_headless_IoT_Device)

In order to use UDOO Dual/Quad'S USB Connection on Mac and Windows, you must install few drivers first as described below:

Enable USB Direct Connection: Installing Drivers

Linux doesn't need drivers to make USB connection work properly. For other OS follow the instuctions below.

Installing Drivers on Mac OS X

Heads up! If you're using the Newest OSX EL CAPITAN please install this Network Driver insted.

  • Reboot your MAC
  • UDOO Dual/Quad will be available at

Installing Drivers on Windows

  • Connect UDOO Dual/Quad via Micro USB Cable to PC, eventually you'll get the following message:
  • Right click on Computer and select Manage. From System Tools, select Device Manager. It will show a list of devices currently connected with the development PC. In the list, RNDIS Kitl can be seen with an exclamation mark implying that driver has not been installed.
  • Right click on it and select Update Driver Software... When prompted to choose how to search for device driver software, choose Browse my computer for driver software.

  • Browse for driver software on your computer will come up. Select Let me pick from a list of device drivers on my computer.

  • A window will come up asking to select the device type. Select Network adapters, as RNDIS emulates a network connection.

  • In the Select Network Adapter window, select Microsoft Corporation from the Manufacturer list. Under the list of Network Adapter:, select Remote NDIS compatible device.
  • The RNDIS Kitl device is now installed and ready for use.

Use USB Direct Connection to control UDOO Dual/Quad

  • Upon successful connection, UDOO Dual/Quad will be available at the address
  • You can establish a SSH Remote Terminal using the address with credentials udooer/udooer
  • You can establish a VNC Remote Desktop Session using the address and port 5900 ( The default password is udooer.
  • You can configure UDOO Dual/Quad via the Web Control Panel


  • If your UDOO Dual/Quad doesn't appear as a mass storage or is not recognized by your MAC\Pc, this may be due to insufficient power output from the USB port it is attached to. Therefore, try to:
  • Change the USB port it is plugged into, to be on the safe side plug UDOO Dual/Quad to USB 3.0
  • If you're on a Laptop, disable USB Power Saving mode
  • Try to use a powered USB HUB
This page was last updated on Monday, March 21, 2022 at 5:19 AM.