I confess this is the first time I have seen about this NX31 ASIC, supposedly TP-LINK.
For those who understand at least a little about mining, which is the case for most who will invest at least $1,440, and at least do a brief research, I think it is difficult to buy this Asic.
Already by the name they try to make the customer think it is a TP-LINK product, there is no need for this.
They say it is a router and an Asic, but for a product that consumes 1,200W I don't know what is the advantage of being a router.
They comment in the article that they sold the first batch already, I don't know how anyone can risk this way, if it is true that sold a whole lot already.
Thanks for posting, it is good that it is already indexed in Google searches, and may alert some interested people.
Just one more detail, look at the logo, they copied the exact logo of official TP LINK