Info about display braille

[Sauro Cesaretti]

Hi all,
I'd like to know which display braille do you reccomend to me?
I have to buy one so I'm looking for one display braillet
that work with linux.
Beside, I'm looking for one display that use USB connection
and it works with laptop computer.
Ialread saw supervario display and the new
version of vario40.
Now I'm using the vario 40 display with serial interface.
Thnks for all information in advance.
Yours Sincerely
Sauro Cesaretti