With Ethereum hovering around $2,300 per token and difficulty back to more than 7.0P, crypto-currency mining isn't as profitable as it was earlier this year. Mineable crypto alternatives are not much better than Ethereum, leading miners to sell some of their cards to recoup costs.
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https://www.techspot.com/news/90611-palit-tells-customers-avoid-second-hand-graphics-card.html?utm_source=dlvr.it&utm_medium=blogger