Despite the poor ROI, there are still valid reasons to buy an
The , once the "gold standard" of Bitcoin mining, is now a vintage piece of hardware that presents a unique set of pros and cons for modern buyers on platforms like Amazon . 1. The Legacy of the Antminer S9 Released in mid-2016, the Antminer S9 Go to product viewer dialog for this item. buy antminer s9 amazon
: To actually turn a profit, your electricity cost would need to be below $0.02/kWh , a rate virtually impossible to find for residential users without a massive solar array. 4. Who Should Buy an Despite the poor ROI, there are still valid
: Community reviews for these listings are mixed. Some buyers on Reddit suggest looking for reputable sellers like Qio Tech , who have a track record of fulfilling orders correctly, while warning that many other listings can be "fishy". : To actually turn a profit, your electricity
: Some users run them to support the Bitcoin network's security or use them as loud space heaters in the winter to offset home heating costs with the small amount of Bitcoin they produce. Conclusion Antminer S9 on Amazon
: These machines typically ran 24/7 in industrial farms before being resold. Common issues include dead hash boards , failing cooling fans, and high noise levels (roughly 76–85 dB, which is comparable to a loud vacuum cleaner).