Those sellers never disappeared; although I'm from not from Paraguay, the situation is familiar. These days they're selling desktops built on 10+ year old Xeons which you can buy for dirt cheap on AliExpress, installed on frankenstein motherboards from noname Chinese manufacturers which are desktop-oriented, but take server processors. The graphics card is something old like RX480, and comes from being run into the ground by years of crypto"currency" mining, then resoldered on a new board, also often developed by Chinese manufacturers you've never heard of.
Graphics cards especially are very unreliable and frequently die within a few months of purchase. But when you can buy a whole PC for the price of one modern videocard, many don't have a choice.
Graphics cards especially are very unreliable and frequently die within a few months of purchase. But when you can buy a whole PC for the price of one modern videocard, many don't have a choice.
https://aliexpress.com/w/wholesale-intel-xeon-processors.htm...
https://aliexpress.com/w/wholesale-motherboards-xeon.html
https://aliexpress.us/w/wholesale-amd-radeon-rx-580.html