“I initially could not get this to work- I tried 3 monitors, 3 cables and 2 PIs. 2 monitors simply claimed there was no input, but one said 'mode not supported'. I suspected the HDMI mode on the PI needed changing and I found this very useful (on this very site)
http://thepihut.com/blogs/raspberry-pi-tutorials/34512708-troubleshooting-a-raspberry-pi-hdmi-vga-adapter
I followed the instructions, rebooted the pi and it worked straight away and works as claimed. An excellent way to reclaim an old VGA screen for use with a PI”
“Nice piece of kit. plugged it in and it worked. Shame it is printed upside down.I use it with my pc monitor so I can flip between the emulation and the real thing.”