I looked up the specs and you are correct, there is no output what so ever. I assumed it included a basic DVI output (single). So basically the only way a gamer can use this GPU is if they SLI with another GPU which is similar spec and has an output, I don't think any gamer will want to go thru that trouble.
I remember when these came out. They actually came out when ETH profitability was low because it came out in 2018, and many bought these and later sold as a loss until the bull market came back in early 2019. So they got fairly good years out of them. Almost as a good value as the RX series from AMD.
In 2019, similar p106 video cards were sold very cheaply on aliexpress with instructions on how to configure this GPU to work on a motherboard with a built-in video output. Then the masters learned how to fix video outputs on these video cards. Now the market is full of offers and gamers will not buy it.