Yes I purchased this one. The first one I got had a bad control board. They let me return and get full refund. I took the chance and bought another one before I got the refund. I ended up getting the full refund and my brand new miner. Alot of them on Amazon seemed fishy but that had some good reviews. I recommend Qio Tech seller. I can't say anything about the other sellers. Good luck
QIO TECH New Antminer S19J... https://www.amazon.com/dp/B09BRCNNKH?ref=ppx_pop_mob_ap_share