I dont need to tell you much about these miners, Canaan quality is top notch. I purchased a pallet directly from Canaan and they landed here less than a week ago. I've got miners, power supplies, and new controllers all directly from canaan. These 821's are loads more efficient than the 741's they are replacing. I accept crypto (escrow if you deem necessary) or cash if you prefer a local meetup. I think my pricing is reasonable compared to all of the 2k+ price points that the big guys are selling them for. Feel free to ask questions. Please see my link below...

https://atlanta.craigslist.org/atl/ele/d/canaan-avalon-821-bitcoin/6542976395.html