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Whatsminer M21-28Th/s 1680W -- Bitcoin Miner -- Fast shipping -- Preorder

Model Whatsminer M21-28Th/s from MicroBT mining SHA-256 algorithm with a maximum hashrate of 28Th/s for a power consumption of 1680W.

We Promise:
1. 100% Guaranteed quality
2. 100% Guaranteed fast shipping
3. 100% Guaranteed lowest price

AFTER-SALE SERVICE

Sold Service

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 :

• The Miner Machine have 180days warranty and guarantee period.
• day and will asking increased price in order place time ..
• No refund ,No goods return back after paid .
• Because Market price instability factor , the product price maybe will change in anytime , so we will not infor each
• *The final price only after received order 100% payment then confirm.

Warranty failure

• The Miner Without authorization to disassembly Machine / Without authorization to change or Replacement device .
• Inflow water,Damage caused by damp and corrosion of circuit boards and components
• Over Clock
• The circuit boards burned or burned；
• Lightning stroke / Voltage surge / Damage caused by inferior power supply
• 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 your our service center the location nearly you.

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