As a second monitor it works great with laptop on trips. But plug in iPhone and all I get is this screen. And yes iphone and monitor have separate power supplies. Screen on iPhone freezes up or will not display video unless I unplug lightening cable from phone. Do not get this if you are hopeful to use it with your phone. Other than that it is great.

I ordered another expensive screen looking at more stars and reviews but is not good as this one.

I was surprised that it worked with my Chromebook. I originally got the monitor for work to test out if it will help with signing leases. I should have read the product details more because having a touchscreen monitor would be the real reason for getting this attachment. I would have to buy a separate signing pad but so far, I do love it. Im currently using it to complete my homework for college. It took a while to figure out how to display as a dual or mirroring screen.

I use this when I travel and it is a great product! works really well and super easy to connect!

Brightness is good and has a nice, clear image. Purchased for portability as Im used to using 2 monitors at my desk. Recommend! Tip: the colors look better when connected with the HDMI cable, which it brings; however, you will have to also attach the USB-C cable to power it.

Thought it stopped working, but then I found the USB-C chord it came with and it works.. any other chord doesn’t work.

I use it for working from home and it works very well