I keep everything on my external harddrive, so need to care for it and keep it safe from damage. This bag makes it easy to carry without worry about damage since it is thick and closes up, plus I don't lose the cables. And I can use it for my power banks, if I want to carry one of those instead. It is definitely large enough that I can carry a few things in there. I have 2 externals currently, and I can easily carry both, plus the cables, with plenty of room to spare.
Get yours here: https://amzn.to/2CfBxDn