![]() Then the odds of winning each day are for one block erupter USB of 330MH/s 0. Remember, investments in cryptocurrencies are like any other investment: Invest only what you can afford to lose. The current (4 23:07) chance of a hash to be a winning hash is 0.0000000000000000001061272725905534506860017351925762341. The ones that are still being used are running on a solo pool. Because of the inefficiencies of the miners, heat, and my lack of hubs, most are no longer used. I also have several small USB fans to circulating the air around the miners. Today, most of these miners are functioning, and some are running at about 330MH/s alongside several on a powered external USB hub. ![]() I personally have over two dozen of these ASICMiner Sapphire USB Miners. I am not in any way affiliated with ASICMiner, Bitmain, or any other crypto/crypto-related company. They also make a unique little gift for friends and family! These are mainly for collectors who want a piece of cryptocurrency history and those who want to learn how mining works. They're honestly more of a novelty item these days, and for anyone who wants to turn any profit in cryptocurrency, this miner is definitely not a choice. The Sapphire miners have not been produced for about half a decade at this point, but they're still relatively common, being sold online on sites like ebay for anywhere between $50.00 and $80.00 US dollars. Hence, for those cryptocurrency enthusiasts who wish to try running one of these devices, remember to purchase some USB fans! However, in my experience, without a fan, these miners get extremely hot, and can break down as a result. They also have a blinky little green light. ![]() While these cute little miners are no longer profitable, they run on minimal electricity and make no noise as a result of lacking a fan. Today, even if you don't pay for electricity, a single ASICMiner BlockErupter will make you under 2 cents a year! For reference, today's modern rigs such as Bitmain's Antminer S17+ can exceed 70TH/s, or 70000000 MH/s, making these little miners utterly obsolete if you're trying to turn a profit.
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