Wholesale Price China Microbt Whatsminer M21s - WhatsMiner M30S+ 100th With PSU Asic miner BTC BCH Miner SHA-256 BTC/BCH – Goalwin

Whatsminer miners M30s+ 100Th/s Power 3400W Asic mining SHA-256 BTC/BCH

warranty service:

1. If the new machine is within the warranty period, the original manufacturer of the mining machine is responsible. Generally, the official after-sales repair service date for the new machine is 180 days，We will guide you to find official free maintenance.

2. The used second-hand miners shall be guaranteed within 45 days from the date of shipment, and the maintenance cost of the machine shall be paid according to the actual situation.

3. We will send a test video with SN code before shipment to ensure that the mining machine you purchased is in good condition.

4. If the mining machine you purchased fails, please send us detailed information about your problem (preferably the kernel log and the mining machine work page), and we will also try to help you solve the problem remotely.

The following conditions will invalidate the warranty：

1.The mining machine itself was dismantled, and the components were changed and replaced.

2.Lightning strikes, voltage surges, poor quality power supplies, etc.

3.Water, circuit boards and components are damaged by moisture and corrosion.

4.The board has burnt marks or the chip is burnt.

5.Overclocking.

6.Private use of the major mining machine manufacturers batch monitoring tools, silencers, IP search tools, resulting in machine damage or scrap will not accept warranty replacement.

7.The anti-detachable stickers are artificially damaged.