Firstly We will choose the best used miners from warehouse based on customers’ requirement.
Secondly we test used miners and make sure the hash rate is comply with the requirement, check the power supply and fans to see if all parts work well.
Thirdly We will deep clean every used miners , change new fan cover . Below deep clean video for your reference.
Change the New fan cover
Below are some pictures of the finished package.



Currently the hot-selling models like: Antminer S19 series,D7,L7,Innosilicon A10, A11,Whatsminer M21s, M30s,Avalon, Brand New YAMI, Jasminer, Brand New GoldShell KD5, KD6 all with very reasonable prices.
You can reach us 24/7 via WhatsApp +86 13728685427, Email: 1@sz-sinowell.com