QNAP - TS-220 -server NAS Network Storage for Two Hard Drives, USB 3.0, eSATA, Empty Chassis (Accessory)
I had another NAS (another famous brand), more oriented "general public" which dropped me after 1 year, and I've probably asked too much. I chose the QNAP TS-220 because it is a model on the border between a NAS personal and professional model.
