Whatsminer M21s 50th 52th 54th 56th 58th bitcoin mining Asic BTC Miner Machine
about this miner
Model Whatsminer M21S from MicroBT mining SHA-256 algorithm rated at 56Th/s for a power consumption of 3360W. Runs at 58.5 TH in normal mode on stock firmware. Specifications Manufacturer MicroBT Model Whatsminer M21S Release June 2019 Size 155 x 240 x 390mm Weight 12500g Chip name TSMC Chip size 12nm Noise level 75db Fan(s) 2 Power 3360W Interface Ethernet Temperature 5 – 45 °C Humidity 5 – 95 %
How about the Warranty?
For all the miners new and used If it is within the warranty period, the original factory of the miners will be responsible for it. If it is out of warranty, we will provide paid maintenance service. Normally after-Sales maintenance service of brand new miners starts from the date of delivery by the manufacture factory within 180 days.
The following conditions will invalidate the warranty
1.The mining machine itself is dismantled, and the components are changed and replaced.
2.Damage caused by lightning strikes, voltage surges, inferior power supplies, etc.
3.Ingress of water, circuit boards and components are affected by moisture and corrosion;
4.The circuit board has burnt marks or the chip is burned;
Used Whatsminer Before Testing
Used Whatsminer Before Shipping
About us--Marine King Miner
B.For used miners,we will send testing video with SN code before shipment to make sure every miner is in a good state. And we will provide paid maintenance service after that.