Move iPhone Backup Folder to external hard drive, and later back to my laptop?

On my laptop I have a backup of my older iPhone, under MobileSync/Backup/[some-string]. I want to backup my new iPhone device and don't have the space to do so. I want to move the older backup to an external hard drive, so if for some reason i'll ever need it, I could copy it back to my laptop. The backup is encrypted. Is it enough to simply cut and past the some-string folder and that's it? Or is this going to break anything? for example maybe another file contains some important meta data that will make the backup useless without it?