DISREGARD - I was thinking you were asking about a regular USB to Serial adapter - I was hunting for one diligently last week and found these wired ones, and they were cheap enough to make me doubt they were any good - I was wrong and hopped in without reading carefully as supper call was issued by the war department!

.. Oh, well, we senior-geeks are allowed..
original reply:
As a matter of fact - I just bought 3 with Driver cd's cheap ($14.49 total!) and delivered free from TX - eBAY
seller was kj189 and I have no relationship with her other than being pleased with price, quality and communication!
Tom
W4NOV