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RE: DragonMint | Bitmain Antminer S9 Killer | Revolution in Bitcoin Mining Hardware
From your experience, generally, what is the ROI you've received and how long have they been profitable for on those previous gens of ASICs you've used? (Variables such as BTC price / elec cost obvi. have a great effect)
I do not remember all so well...been 3 or 4 years since then. But ROI was not that fantastic, in general they mined to me about ~1,5-1,7 times more BTC than I have paid for them (measured all in BTC, until it became full non-profitable, below the electricity cost). Shipping was dealyed much, and 1 month late in starting was making a huge huge reduction to ROI ( due to a very fast difficulty increase) Hence - my warnings.
Hello @noates
Experience and feedback shared by @onealfa are quite appropriate and appreciated!
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