Drobo 5C
 

" ... In conclusion, the Drobo 5C is perfect for any user wanting an external storage device (DAS) that's hassle-free and easy to set up. The Dashboard software is simple to use and the real the winner for me, is the ability to mix and match hard drive of different brands, capacities and speeds."

http://www.funkykit.com/reviews/stor...obo-5c-review/