I BOUGHT 3000 FROM OUR SIPPLIER IN CHINA

OUR CUSTOMER HERE IN BRAZIL IS SAYING THEY ARE FAKE. MAYBE HE IS NOT USING IT PROPERLY, BECAUSE WE HAVE BOUGHT THE SAME ITEM WITH THE SAME SUPPLIER AND THEY WERE OK.

MAYBE THIS CAN HELP US OUT :

P/N : FT232RL
LOT NO : G0101331
DATE CODE : 1224
BOX NO :121716

HOPE YOU CAN REPLY TO ME, I JUST NEED TO KNOW IF ITS FAKE. THANKS A LOT