> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/extender-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/extender-manual/modes-of-operation/usb-drive-mode.md).

# USB drive mode

You can access the data on the microSD card without needing an external card reader. This is explained in the following steps:

1. Turn Extender ON. The Status LED will turn green.
2. Ensure no headsets are connected to Extender.
3. Plug Extender into a PC, your computer should detect it as a generic USB drive and after a few moments you should see it appear as a drive. You can now access the encrypted files on the disk.

*Note: All data stored to the SD card is encrypted and the EMOTIV App and a* [*PRO license*](https://www.emotiv.com/emotivpro/) *is required to decrypt the raw data.*