Factory Restore the device?

I have a Nebula Capsule and the exFAT does not work there which I would like to be able to ust the stick with as well. I did try the MAC but the disk utility didn’t allow the formatting. So I did use EaseUS Partion Master. Could format it then. I had tried to use CMP but it was impossible to do. How ever the it is now slow in copying as the cluster was set 32 kb.