Hi @Cristovao,
A warm welcome here in the Roku Community!
We understand that you wanted to connect multiple hard drives to your Roku device. We're happy to assist you. Please be advised that you can connect more than one USB drive to your Roku device by connecting it to a USB hub.
You can also check out this support article here on how to use Roku Media Player to play my videos, music, and photos.
If there's anything else that we can do to assist you, please let us know.
Kind regards,
John
John
Roku Community Moderator