High-end or enterprise NAS: The high end of the market is driven by businesses that need to store huge amounts of files, including virtual machine (VM) images. High-end NAS provides rapid access and NAS clustering capabilities.
Midmarket NAS: This end of the market can accomodate businesses that require several hundred terabytes of data. Midmarket NAS devices cannot be clustered, however, which can create file-system siloes when multiple NAS devices are required.
Low-end or desktop NAS: The low end of the market is aimed at small businesses and home users who require local shared storage. Increasingly, this market is shifting toward a cloud NAS model.