The price of the DAC kit is $52.99, but you have to read further down below.
It is a kit,you need solder all parts by yourself. You have to pay the seller 25USD more, if you want the components soldered on the board.
Don't include ES9018 DAC Chip, which he charges 56USD for one,and don't include 4pcs Single Op Amp(can use LME49710,AD797,E5534,OPA627) , 25USD for the CM6631 USB card.
In short this will end up to be $ 159.00 w/o the opamp included. Not bad, still affordable and good for experimenting specially its a 9018 DAC. I might consider buying one. The only question is the support from the seller, if problem is encountered along the way.
Thanks for sharing the link.
IMHO, pretty misleading to say you can buy an ES9018 DAC board cheap, but by the way it doesn't actually include the ES9018 chip unless you pay extra.
I was wondering how he was selling it so cheap, that question is answered.