75db 3050W BTC Miner Machine ASIC Antminer S19 PRO Bitmain S19J Pro 100T

3050W ASIC Antminer S19 PRO 75db Bitmain Antminer S19J Pro 100T Bit Coin Miner Rig

Description:

Model Antminer S19j Pro (100Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 100Th/s for a power consumption of 3050W.

Principle

Bitcoin system is composed of users (users control the wallet through the key), transactions (transactions will be broadcast to the whole bitcoin network) and miners (a blockchain is generated by competitive computing to reach a consensus at each node, and the blockchain is a distributed public authoritative account book, which contains all transactions in the bitcoin network) .
Bitcoin miners manage the bitcoin network by solving the problem of workload proof mechanism with certain workload - confirming transactions and preventing double payment. Because hash operation is irreversible, it is very difficult to find the random adjustment number of matching requirements, which requires a continuous trial and error process that can predict the total number of times. At this time, the workload proof mechanism will play a role. When a node finds the solution of matching requirements, it can broadcast its results to the whole network. Other nodes can receive the new data block and check whether it matches the rule. If other nodes find that they really meet the requirements (the operation target required by bitcoin) by calculating the hash value, then the data block is valid, and other nodes will accept the data block
Nakamoto compares the generation of bitcoin by consuming the power and time of CPU to the consumption of resources by gold mines to inject gold into the economy. Bitcoin mining and node software mainly initiates zero knowledge proof and verification transactions through peer-to-peer network, digital signature and interactive proof system. Each network node carries out broadcast transactions to the network. After these broadcast transactions are verified by miners (computers on the network), miners can use their own work proof results to express confirmation. The confirmed transactions will be packaged into data blocks, and the data blocks will form a continuous data block chain. Each bitcoin node will collect all the unconfirmed transactions and gather them into a data block. The miner node will add a random adjustment number and calculate the sha256 hash value of the previous data block. The mining node tries again and again until it finds the random adjustment number so that the hash value is lower than a specific target

Miner Specifications:

FAQ:

The Miner Machine is different with consumer products of life , It is customized according to customers' needs. Please investment carefully . after deal then is agreed the sold condition of service as below :
1. No refund ,No goods return back after paid .
2. The Miner Machine have 180days warranty and guarantee period.
3. Because Market price instability factor , the product price maybe will change in anytime , so we will not infor each day and will asking increased price in order place time . the final price only after received order 100% payment then confirm.

Warranty :

1. A 180-day warranty is provided starting from the shipping date.
2. All sales are final. No refunds will be granted. Defective miners can be repaired for free if they fall under the Bitmain warranty policy. After the warranty period, machines can be repaired at the cost of parts and labor.
3. If you notice there are some loose heatsinks when you receive the miner, please inform us by email.com within 3 days from the date the package is received according to UPS/DHL/FEDEX's website.
4. We does not take any responsibility for or compensate for any loss as result of downtime caused by delays in transportation as a result of custom formalities or other reasons.

Warranty failure :
 

1. The Miner Without authorization to disassembly Machine / Without authorization to change or Replacement device .
2. Lightning stroke / Voltage surge / Damage caused by inferior power supply
3. Inflow water,Damage caused by damp and corrosion of circuit boards and components
4. The circuit boards burned or burned;
5. Over Clock
Please contact with us as soon as possbile if you get the thing happened above . we will help you to solution within short time and tell our service center the location nearly you.

Packing & Delivery:

1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!