Better than any answer i can give you, go google.com and search for
keyspan "USB Adaptor"
Because "USB Adaptor" is in quotes, you won't get all twelve thousand entries that have "USB" or "adaptor" or both; adding "keyspan" will keep you from seeing all brands of usb adaptors.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
