Bitmain delivers their Bitcoin miners in batches. Every batch is different than the other and also has a different hash rate.
For example, antminer u1 asic usb current batch of Antminer s9s available from Bitmain are only However, on eBay you can still find people selling the older more powerful model. Keep in mind that the This way you will know to calculate the exact ROI and when you will break even. Bitmain supply their customers with a 90 day warranty, however that warranty comes with limitations.
Some eBay sellers will also supply you with a warranty so make sure to read the details on each listing careful. It depends on many factors such as:. If you have more questions about the Antminer you can always enlist the help of other Bitcoiners on the official thread on Bitcointalk. Click antminer to find the best deals on the Antminer s9. The shipping cost is included in the retail price shown above. Orders are confirmed only after antminer payment, inclusive of shipping cost, is received by BitmainMasters.
Order cancellation or refund request for any reason will not be entertained by BitmainMasters. We advise you to make any payment only after careful consideration. Order cancellation or refund request will not be entertained by BitmainMasters. A day warranty is provided starting from the shipping date. Overclocking the miner will void the warranty immediately. All sales are final.
No refunds will be granted. Defective miners can be repaired for free if they fall under the BitmainMasters warranty policy. After the warranty period, machines can be repaired at the cost of parts and labor. If you notice there are some loose heatsinks when you receive the miner, please inform us by email to info bitmaintech.
However, the lower your electricity costs, the better your odds of the miner paying for itself within a reasonable timeframe. Judging value in this space is a complicated exercise, although it would appear that nothing vastly technologically-superior to the S9 is likely to be released in the near future.
The release cycle of a new generation of mining hardware every few months is likely to decelerate from this point on, antminer manufacturers have transitioned to cutting-edge 16 and 14nm designs. The on-going miniaturisation of semiconductors allows ever greater computing power and electrical efficiency, antminer the process cannot continue forever with the current technology. The 16 nm fabrication process used in the manufacture of the S9 is a major improvement upon the 28 nm design common to other modern mining devices.
Although a 10nm process is on the horizon forfurther increases beyond that remain theoretical. Further, the design and manufacture of any 10nm Bitcoin mining hardware is likely to take at least a year. The good news is that existing power supplies, at least those of sufficient wattage, are fully compatible with the S9. A antminer of chips, spread over 3 circuit boards, are combined to achieve this phenomenal hashrate. Note that Power Cost will be specific to your location and that Difficulty changes every 2 weeks, usually to the upside…. Your Pool Fees antminer be determined by your mining pool; although the S9 is plenty powerful, a single unit is highly unlikely to find any blocks when solo-mining.