There is no official size limit for connected USB hard drives; however, you may experience issues if you have a very large collection on a high-capacity drive. The memory available in our range of network players, which is required for indexing tracks from USB local media, is limited and may not be sufficient for such large collections.
The primary function of the device is to serve as a network music player. The USB ports are designed for the convenient connection of USB thumb drives. While the majority of USB drives should work well with the unit, we cannot guarantee compatibility with all USB hard drives.