Operating Instructions and Installation Instructions

Tips for Using USB Devices
67
To avoid damage to the FRITZ!Box, only operate USB
storage devices that require more than one USB port
for operation (for instance hard drives with a Y cable)
if they have their own power supply or a USB hub
with its own power supply.
The FRITZ!Box can not defend the USB memory from
external influences. Thus such phenomena as volt-
age spikes during storms may occur, and writing to
older USB memory devices may corrupt the data
structure due to a high number of defective struc-
tures. In such cases a complete loss of data may oc-
cur.
Therefore we recommend always making a security
copy of the USB memory content so that your data
are not irretrievably lost just because losses may oc-
cur on the USB storage device.