For sale is 1.5lbs of fiber optic Lazer transceiver intended for gold recovery. They have Lazer Diodes, fingers, small boards inside. I do not know if any of them work and as such they are being sold for scrap.  I cannot guarantee the amount of precious metals you will recover.  I can only guarantee that you will receive exactly what is pictured so look closely at the pictures. As is the nature of the business returns are NOT accepted.