I think the reason why it's cheap is cause these cards were originally ment to be used for mining, but then the crypto crash happened.
Which is why if you look at other cards similarly priced as this one, they seem to all have the same cheap and simple heatsink design since these were originally ment to run on custom firmware and underclocked/undervolted. Have seen these cards before, years ago and some if not most of them used to only have one display output.
If you still want to get one of these cheap cards to try out , I would suggest getting the AMD ones like the RX 6600M which really cheap and unlike this card (nvidia 3000 risc/mllse) that you have to use the custom driver that the seller provides you, the AMD 6000 cards (51RISC or MLLSE) you can just download the officiall drivers from AMD and they work out of the box
I Actually own two of these (RX6600M and RX6600 MLLSE) i just wanted to try them out since ived used ex mining cards before, and so far ived had them for a few months now the haven't experienced any seriouse problems with them yet.
The only problem I had so far are the temps due the crappy heatsinks it comes with (card runs hot at around 75c+ under heavy load using default fan curve, and around 60-65c using custom fan curve) so overclocking is pretty much impossible and undervolting doesn't do much for it, so you need a decent amount of airflow near the gpu for these if you plan to buy them for testing.