External hard drive for ipad /icloud
I need to back up my iPad to a hard drive. Can I just use my charging cord in a hard drive that has a normal USB port? Also my school notes App called Notability is starting to not work as well. It shows that the documents are loading with an iCloud symbol over it and take a very Long time to open. I still have a decent amount of iCloud storage so I am not sure why this is doing this and that is why I am getting a external hard drive. Please help
iPad (6th gen) WiFi