I took the time to clone 6 hdds from the same source drive one at a time using AOMEI 6 backupper app. the app can only clone one at a time like most free apps I have seen. I did this because my desktop started to display unusual behavior and I was not sure where the malfunction lied, plus all efforts to reinstall the OS failed using all the usual processes. if the clone effort failed that failed hhd would be flagged as faulty or failed same as the boot menu non detect which turned out to be a FALSE ERROR. even TODO BACK UP "stopped working" error appeared several times regardless of hdd combination. I cannot believe ALL hdds were faulty. my 6 clones proves that. with the story out of the way is there ANY FREE clone app that can clone 2 hdds at the same time? my drive cage can hold 3. with 3 power plugs available and 2 unused sata ports available. name of program, download link? thanks.