Konica Minolta bizhub C451 - Manual (Page 35)

Overview of the User Box functions 1
C451 1-13
When the external memory is connected, an icon appears on the bottom of
the screen and the following screen appears. Check it, and then touch [OK].
2
Reminder
This machine is equipped with two USB connectors on the side. As one
is for optional connection, two sets of external memories cannot be con-
nected at a time.
Do not pull out the external memory while a document is being saved to
the external memory or being printed.
Do not use any USB device other than the USB flash memory (such as
hard disk or USB hub). However, the optional products connectable to
the USB connector of this machine are exceptions.