Microsoft Wireless Display Adapter

--I've had it for awhile now. It does not cast high resolution video. When you try what shows up on your TV is 'choppy, jerky', etc. As far as I can tell no device like this supports 1080p resolution yet. Again, don't believe the casting ads you see. 720p is a crap shoot but mostly it does cast. In general, the smaller, less resolute the video, the more likely it is to cast successfully. First, place little stock in what advertisements say about casting what you see on your media device or computer to your TV. Setting up 'Casting' is not easy, fun, or reliable, but it can be done. To sum up super-simple, you can either get a unit designed for Apple devices, or one designed for Windows devices, or one designed for Android devices, or one that tries to do everything. This device is specifically designed to cast from a recent-version Windows device. Period. One end of the device plugs into your TV HDMI port and the other end (for power) plugs into the TV USB port. If these are not available and close together, you'll have some problems setting up. An extender for the USB comes with it, but it is short. If you only have an HDMI port available, you can use a longer USB cable to plug in to an electric outlet if you have the standard USB power unit for doing so. The range? Think in terms of the olden days when we first had 'portable' phones. If you walk out of the room, stand by a 'noise' source such as a room heater, hair dryer, or Fridge, you may loose the signal. Rule-of-thumb is to be within 20 feet of your TV and don't move around much. The setup is easy but no directions come with it except what is displayed on the screen. You'll need to know how to change the input on your TV to the HDMI port for the unit, and know how to connect to a Miracast device in Windows 10 or on your Windows Miracast enabled phone. (Google it.) If you cast from a computer, you'll need the computer wireless connectivity turned on, which it may not be if you use a 'wired' connection. You'll also need to know how to set your display to 'Duplicate' rather than the default, 'Extend' mode. You'll need to remember all this as you may have to remove a nonworking Miracast device and re-add it between uses. For all that, the unit is as advertised. I can cast a perfect media picture from my PC (close by) to my TV. It does not work as a second monitor, though, as there is a lag moving my wireless mouse around. That's part of the 'art' of casting. You may have to experiment with different devices to get what you want. The mouse lag makes using it from the TV screen imposssible. Other mice might work better. My wireless keyboard works perfectly. Since I got this unit specifically and only to cast media, I'm satisfied now. The negative reviews you see for these casting devices, I'm sure, are due to people not understanding the casting process, buying cheap, expecting too much, or not knowing how to set the units up (they all come with lousy directions). Also, like this unit, don't buy one that requires you to push a button on it to change between modes. Once installed on a TV that isn't practical. This unit can be controlled from a downloadable Microsoft app, but unless you have a compatible Windows phone, you don't need anything more than what is in your Windows 10 operating system to set up and control it. There are cheaper units for casting, and many that claim to support multiple modes (Apple, Android, and Windows). Miracast, supported by both Android and Windows, is the most 'touchy', which is why I chose a unit specific to my device, a Windows 10 computer. Not all Miracast units support Windows, or don't support it well, or are just not that good. My recommendation? Don't buy cheap. Don't try to get a unit that says it will do everything. Get one specific to your device, and don't expect all that is advertised for 'casting' from one device to another. This unit, I highly recommend for people casting from a Windows 10 computer to the TV. I don't have a Windows phone, and I'm too cheap to ever buy a top-of-the-line phone or tablet that would have the memory and processing power to try this.