Instructions for use: 1:Please connect HDMI Input Port to your Input Device,such as Set Top Box,Computer/Laptops etc. 2:Please connect an HDMI or VGA or DVI cable from our adapter's Female Ports to your Output Device,such as Projectors,Monitors,Tvs. 3:Please connect Micro USB cable from our Adapters to your USB Devices in case insufficient power if needed,if you connect to Mac OS Input Devices,this step is necessary,or you can noy get content displayed in your monitors. 4:If your conecting HDMI Output Displays do not support audio output or built-in speakers,please connect 3.5mm audio cable from our adapter to your exteral speakers to audio out;If you output video from VGA,Connecting 3.5mm audio jack from our Adapter to your external speakers to output audio,if Through DVI,connecting from your input devices's audio jack to your external audio device to output audio.For Audio output,please select audio output devices as HDMI Displays in your input Devices.5:If your VGA just connecting Seperatrely,and it only has audio,but withoutpictures to display,we suggest you to change another VGA cable to try.Important Notes When using: 1:Because of the system limitation, our adapter does not support Chromecast and Roku,not support transmitting the sound of your PS3, PS4; you can connect PS3 or PS4 to the external speaker to transmit the sound.2:The Adapter can only connect one monitors at a time,you can not connect more than one monitors to output signal. 3:If you buy adapter from us,we do not supply HDMI ,VGA or DVI cables.