>>In Konqueror, press F9 to open up the side-bar if your USB device is recognized it should look like this:

>>+ Hard Disk (sda1) [/mnt/sda1]
--------
sda1 does not exist on my system
Hereafter is the content of /mnt:
app
auto
cdrom
cdrom1
floppy
hda1
hda5
hda6
hda7
test
uba1