Use whatever you like providing it fits in the case.
The only thing you need to concern yourself with is formatting the drive correctly for the inbuilt Linux operating system. I think it's ext3, but please check that before you go ahead and do it.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?