What is the difference between setting up 4 10G HDDs and a RAID that is made of 4 10G HDDs? A RAID setup only uses 1 interface right? Is there a way to set up more than 1 HDD on one interface? Possibly a devise that could be bought that has all the parts of RAID devise but you hook up the HDDs? And does a RAID setup write the same data on each drive to get the better read speed or is it just that it can write different parts of the data at the same time to achive better write speed or both? And overall is it worth it? There's a lot so I plan to leave open for comment for a little while.