I have the 16GB model.
The color gives the size, it is translucent yellow-orange.
the smaller ones are black or transparent red.
I use 2 laptops HP and Toshiba Satellite series A.
Works great.
A small internal lamp on top indicates the access to the device.
there are 2 holes at the end for a cord (not supplied) placed on the memory side (on some key attaches the cap is listed ...)
She looks a bit wide, but does not prevent all plug in a USB key on the adjacent outlet.
only flaw, cap a not so beware sense to force the wrong way otherwise ...
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Update February
There's a catch is sometimes not recognized by the laptop Tosh before 2 or 3 insertions, my old laptop running XP sony does not see.
It is also very slow (not about emptying the 16GB 15mins !!! instead must rely on time)
So I take off a star