D-Link DWR-966 User Manual page 59

Advanced USB USB Storage
This page displays information regarding the USB storage device
connecting to this product (including the mounted directory, its
capacity, and the percentage of capacity used). You can also designate
a folder in the USB storage device as a shared folder to share its files
with other computers connecting to the DWR-966.
Note: USB storage information will only be displayed when the
product's DLNA Media Server function is enabled.
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