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About QNAP External RAID Devices

QNAP External RAID devices are a series of expansion units designed to increase the storage capacity of your NAS or computer. External RAID devices are different from other QNAP expansion units in that they feature hardware RAID. A host can either access the disks in an external RAID individually, or the external RAID device can combine the disks using hardware RAID so that the host accesses them as one large disk. Some external RAID devices have hardware switches for storage configuration, while other models can only be configured through a software interface.