📀【Synchronous Display】The adapter is the FIRST one to achieve simultaneous display. 1.If you connect to Windows Systems Input Devices, HDMI/VGA/DVI Female Ports can be connected to Monitors simultaneously; 2. If you connect to Mac OS Devices, only HDMI and VGA / VGA and DVI can be connected to HDMI and VGA Monitors or VGA and DVI monitors together, not including HDMI and DVI. [NOTE: Synchronous Display can only show same views] 📀【Plug and Play】No drivers required. Easy operation and convenient use. Connect HDMI Desktops, Laptops etc input devices with other corresponding output devices, such as HDTV, projector, monitor. [Separately HDMI or VGA or DVI Cables are needed, but not included]. 📀【Audio Output】①If you connect HDMI to HDMI, audio will be transmitted directly to your monitors along with your video, you needn't connect audio cable. ②If you connect HDMI to VGA or DVI separately or connect HDMI VGA and DVI, HDMI and VGA, VGA and DVI together, please connect adapter's audio jack to external speakers to output sound.