<b>Important Note: This Adapter only works on the computer which is running Windows 7/8/10 operation system </b><br/><br/> <b>Operation Instruction:</b><br/> 1. Please try to install its internal driver directly. After plug it into your computer, you will see there a new USB device folder in your computer, then double clicks to install the driver.<br/><br/> 2. If you can't get it work, please manual download the latest driver as below, then install the driver and RESTART your computer.( Pls remove the adapter while you restart computer.) <br/> You have to download the latest driver from our website <br/> <b>Please search " Download - Hoplaza " from GOOGLE.</b><br/> <br/> 3. It's better to turn off anti-virus software and low down the firewall level before install the driver. You can turn on them after installation. It takes about 6-10 seconds to mirroring from PC to TV, after you get everything ready. <br/><br/> <b>FAQ:</b><br/> ◎If found it can't convert picture well, please check if you plug the adapter on a USB3.0 port or not? And check the HDMI extend cable version you using, the HDMI version at least be V1.3 or higher, or it can’t support high resolution data transmission. <br/><br/> ◎ If your computer have USB 2.0 port only, DON'T BUY this adapter. It also support USB2.0 port, but for USB2.0 port the max resolution only 800*600. <br/><br/> ◎This USB3.0 to HDMI cable supports Audio Output, make sure that the USB PnP Sound Device is installed and you have set that as the default device and raise the volume in the Attribute.<br/><br/> ◎You may can not make it to work smoothly due to the computer incompatible problem. Please feel free to <b>contact our Customer Service Team</b>, we will try our best to solve the problems.<br/><br/>