When used first time, write to USB gave only 200Kb/sec speed o.O Like 3 hours for 300MB copy.
I formatted the USB as EXT4, and tried again, the speed went up to 1.6MB/sec, but then quickly fell down to 400KB. Sure, it's wayyyy better but still cannot believe this is the way to make large copies of several GBs. Am I missing something? I mean, if I need a backup for my Home, it would take me whole night.