Unmarked modems, graphics cards, drive interface cards and other
devices often require drivers to function. Even though the hardware may
be old, it may still have a useful purpose - if the proper driver can
be found. Many of these cards have cryptic labels but nothing obvious
about who made it.
However, if there is an FCC ID on it, you may be able to get the
additional mileage from the device.
The FCC ID is a unique code that identifies the manufacturer and the
part. The FCC website has a section to look up ID numbers.
Go to the FCC identification database at http://www.fcc.gov/oet/ea/. The minimum information needed
is the Grantee Code, which identifies the manufacturer in the first
three characters of the code. The product code can also be entered to
find the specific product.
The information that is returned will tell you a great deal about the
product including its age. Once the manufacturer is known, chances are
that you will be able to locate the necessary driver through a Web
search or by inquiring in a users' forum.