Chromebooks do not support USB devices that require drivers (for example, printers and drawing tablets).
USB CD/DVD drives connected to Chromebooks function as read-only devices - meaning they read data from a disc, but cannot write data to a disc. Chromebook computers can read data DVDs but cannot play DVD movies.
The following USB devices should work, in most cases:
If a USB device from the above list does not work, try the following troubleshooting steps:
Remove the USB device.
Restart your computer.
Reinsert the USB device.
If the device is still not working, try using a different USB port, if one is available.