items not found on internet

[electronicsales806]

I have several isa sound cards that I obtained several years ago for a project that I abandoned.  I can't find some of anywhere on the internet.  To me that means they are very rare or garbage.  Does anyone know of a way I can determine their value?

[lakefor94]

@electronicsales806 

My "guess" is that if you can't find them with a Google search by part number or model number on the card is that they are old cards. Perhaps the information or spec sheets were never cached on Google. The company could have discontinued the product without much sales success.

They sometimes manufacture a card for a specific company for use in some specific product, thus no published information on the card.

I have run across some computer related products in the past that I could find zero information on.  =  junk in my estimation. Or, Perhaps a long tail item that someone could be looking for, some year....