> I would be surprised to hear that indeed all the current offerings require wall power, that none can operate off laptop/uplink- I think you are wrong. But per

> I would be surprised to hear that indeed all the current offerings require wall power, that none can operate off laptop/uplink- I think you are wrong. But perhaps. Indeed, there are products that don't require wall power. I got a Chinese model [0] off Amazon that does Ethernet + 4K@60 over DP/HDMI (alt-mode, not DisplayLink) and can even drive an external spinning drive, all from the USB connection from the PC. The catch is that it comes with a dual-port cable, meaning it requires two (adjacent!) ports to work. I haven't tried it with a regular cable, so I don't know whether that's a hard requirement. It's also able to do PD pass-through if you connect it to a wall. One downside is that I've sometimes had the screen go dark for a second, and other people have complained about this on the Amazon page. So it's not clear how reliable this will be in the long run. --- [0] https://www.amazon.fr/gp/product/B09MTTZ36K https://www.amazon.fr/gp/product/B09MTTZ36K