Bests & Worsts Reviews from Amazon

I spent a lot of time looking into WHDI devices like the Nyrius ARIES series. I was really impressed with all the good reviews. Unfortunately, I found the product to be misrepresented in marketing materials and the picture quality to be completely unacceptable for my purposes (cloned laptop display). The problem is that Nyrius likes to claim their signal is "uncompressed." This is misleading. The fact is, this device does not transmit a full unmodified 1080p signal. There's very little information on this online besides the common claims that the video quality is "Perfect" (source: whdi.org), "Uncompressed" (source: this product page), "lag-free" and so on. But nobody will claim it's exactly the same as an HDMI cable, because it isn't. After much digging I found that WHDI technology "prioritizes areas of visual significance" while giving less priority to others. Ultimately this means WHDI is using a motion estimation/detection algorithm just like any other video compressor. The difference is that they simply drop information rather than encode it into some other format, which would have more potential to introduce lag. To me this means the signal is compressed, but if you want to get disingenuous I guess you can claim it isn't since there's no format conversion going on. I always thought "compression" would mean taking a signal and making it fit in a smaller amount of bandwidth, which is what is happening here, but marketers really like to invent their own definitions for words. For the technically minded, you can read more about WHDI's "totally not compressing anything" motion-estimation and prioritization algorithm here: [...] To see what I mean, hook up a computer of some kind (I used a Mac Mini) and drag some windows around. In my case I had the transmitter and receiver within 2 feet or less of each other, and the built-in signal strength meter on the display indicated full quality. When any amount of motion is displayed on the screen (dragging a window would be an example of "high motion" for the purposes of video encoding, at least the way WHDI does it) there is severe visible artifacting taking place. When hooked up over a straight high-speed HDMI cable, this artifacting is of course not present at all. I double-checked that I had turned off my 5Ghz wireless router just to make sure it wasn't interfering. Picture quality (during motion) was still unacceptable and not at all close to the performance of a normal HDMI cable. All that said, if you just don't care about top-notch visual quality and you just want a functional wireless video setup, this will work. It may be reasonably OK for TV/Movies, as many have attested. And the out-of-box experience was certainly extremely easy and it worked immediately. But if you are trying to solve a wiring problem I might suggest looking into HDMI-over-Cat5/6 baluns if it's an option for you. You can do a lot better than this solution.