A911 A920 A921 18T 19.5T Canaan Avalon Miner ASIC BTC Miner Machine second hand​:

The Avalon A9 series uses 7nm chips.
Compared with products in the same general price range in the industry, Avalon can save more energy.
Cooling system upgrade: super large air volume 14CM fan, to meet the use environment above 40 degrees

We have 2 BTC mining farms built by ourselves, have our professional operation and maintenance personnel, and cooperate with multiple maintenance centers. Before the mining machine is shipped to you, we will test the mining machine and send the test video to you to ensure that the mining machine in your hands can operate normally and minimize the loss of transportation.

Q: What should I do after receiving the machine?
A: When unpacking, please record the whole process. After unpacking, first check the miner.
Check whether the appearance of the whole machine is deformed or damaged, and whether the fans and connecting cables are damaged
Check whether the control board, hash board, and heat sink have fallen off
If you encounter any of the above exceptions, please take pictures or record video first to keep the evidence

Weyland Technology was established in 2015, located in the mountain city of Chongqing, one of the four municipalities directly under the Central Government in China. Our company is a cryptocurrency mining machine sales company focusing on cooling technology (air cooling, liquid cooling). We can provide mining machine selection, From cooling technical solutions to mining pool connection complete sets of mining strategies, we are committed to solving various problems of small and medium miners in the pow mechanism and achieving a "win-win" in the industry.