KitGuru tried the PowerNAS Business Mini
A quote from the article:
If you are a fan of model names that describe a product in a fair amount of detail then the PowerNAS Business Mini will be right up your street. PowerNAS offers three families of NAS and this model is loaded with Windows Server 2012 R2 for the business market. It earns the other part of its name by using an Ablecom NAS chassis that is (relatively) small and compact and, incidentally, reminiscent of the cuboid Thermaltake Core V21.PowerNAS Business Mini Review @ KitGuru