There are two easy options to upgrade storage.
The first is to use a Micro SD card. By going this route, you can easily add storage capacity in a way that is compact and portable..
The second option is to add an external USB hard drive.
I own this Chromebook and have been blown away by its blazing fast performance speed! Solid state hard drives do not have the large storage capacity of older hard disk drives, but they make up for in speed, smaller size and lower weight.