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: The primary advantage of buying through Amazon is the 30-day return policy . This offers a layer of protection that direct-from-China or private-party sellers often do not provide, allowing you to return the unit if it arrives with faulty components. 3. Financial Reality in 2026 From a purely economic standpoint, the is largely obsolete for profit as of 2026. Profitability : An : At a standard U

: It is an excellent, low-cost "teaching" machine. It allows beginners to learn how to set up IP addresses, manage mining pools, and understand ASIC hardware without risking thousands of dollars. or , which offer exponentially higher hash rates