Sure. Most will only go as low grade. The most economic thing would be to throw them in with your shred (steel). It's not cost effective to mail these off to an ewaste buyer. Now, if the boards have gold plating on them, then we're talking about something entirely different....SAVE THEM! There are definitely buyers out there for these. As far as pricing, contact some of the ewaste buyers on here with attached pictures....good luck.
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