Performance -
Testing the performance of the Accell UltraVideo HDMI to VGA adapter was not the simplest thing to do. We could have just plugged it in and checked to see how it looked. The problem with that is that it is only a small part of the story. For our testing we wanted to see how it worked in multiple situations including powered by the laptop or tablet that is providing the video. We decided to use our Asus EEE Slate EP121 tablet Running Windows 8 as the source device and then push the video out to a Dell P2210H.

We saw no issues in straight video reproduction the adapter worked perfectly to push the video signal from our EEE Slate to the P2210H. We ran it through standard we browsing, Netflix video streaming standard video playback and even some minor gaming (Cut the Rope). There were no problems at all when the HDMI to VGA adapter was plugged into wall power or when plugged into USB power on the EEE Slate (which was also plugged into wall power). We did not start having any issues until we pulled the plug on the EEE Slate. Here we ran into a few issues that were entirely related to power management and the fact that the UltraVideo Adapter from Accell needs continuous power. We found that our battery life was significantly reduced during HD video playback (battery life was reduced to about 1hour and 50 minutes from over 3 hours) and once the batter went below 20% it would not directly power the adapter. Now this is an issue with the power management on the EEE Slate and not the HDMI to VGA adapter, but it is something to take into consideration if you are looking at this for mobile use.